Ammunition

US12768607 - Ballistic multi-part chamber locking assembly

Improvements in a ballistic with a multi-part chamber locking assembly is disclosed to allow the casing ejection and reloading sequence to be temporarily slowed down to capture the optimum amount of ignited gun powders expanding gas, prior to the round exiting the barrel. Large slide component(s) of a firearm are replaced with a multi-part chamber locking assembly. This negates the requirement for a round to move laterally after moving vertically. The round only moves vertically thus mitigating the requirement for any forward motion. The multi-part chamber reduces the weight and materials needed to actuate all components of the ejecting and reloading process, so more energy is available to transfer movement of casing ejecting. The round is fired with a hammer or striker through impingement or a firing pin actuated action on a primer to ignite the propellant.

US12768608 - Firearm system with gas-piston system

A firearm system includes an upper receiver and a barrel mounted to the upper receiver and configured to fire projectiles. The firearm system further includes a bolt carrier arranged within the upper receiver for reciprocation during firing. The firearm system further includes a gas-piston system for transferring firing force to the bolt carrier for reloading after each projectile is discharged from the barrel.

US12768609 - Magazine floorplate assembly with a tactile round-count indicator

A floorplate assembly with a tactile round-count indicator is disclosed. The assembly includes a floorplate, a tactile indicator, a plunger, and first and second spring elements. The floorplate is configured to be secured to a floor end of an ammunition magazine and includes a slot through which the tactile indicator moves between a retracted position and a protruding position. The plunger is operatively coupled to the tactile indicator and moves the tactile indicator to the protruding position when the plunger is depressed. The first spring element is configured to bias the tactile indicator toward the retracted position. The second spring element is configured to bias the plunger relative to the tactile indicator.

US12768625 - Polymer cartridge with enhanced snapfit metal insert and thickness ratios

A high strength polymer-based cartridge having a polymer case with a first end having a mouth. A body can be formed below the mouth and having a propellant chamber and a longitudinal axis. A back end can be formed opposite the first end and formed below the body, with a first snap ridge comprising a first ridge angle at approximately at 90° to the longitudinal axis; and a second snap ridge, positioned closer to the first end than the first snap ridge, comprising a second ridge angle at approximately at 90° to the longitudinal axis. Further, an insert is configured to engage the back end.

USD1154843 - Ammunition magazine

US12759038 - Method of manufacturing a high-pressure cartridge case

A high pressure cartridge case is fabricated by: providing a wire or rod; cold forming a cartridge case into a drawn blank or a tubular component from sheared lengths of the wire or rod; annealing the cartridge case using a belt furnace, flame furnace, induction furnace, or a batch furnace; performing a machine ejector slot and trim on the cartridge case; forming the shoulder and neck of the cartridge case; performing a heat treatment of the cartridge case; and tempering the cartridge case.

US12760977 - Adjustable gas regulator valve for direct gas operated firearms

An apparatus and methods are provided for a gas regulator valve for adjusting cycle speeds of direct gas impingement operated firearms. The gas regulator valve comprises a gas inlet for receiving expanding gases from a fired cartridge and a gas tube for directing the expanding gases to a bolt carrier comprising a firearm. The gas inlet is disposed at the front of an upper receiver comprising the firearm. The gas tube directs the expanding gases into a carrier key of the bolt carrier. The gas regulator valve includes a plug for controlling gas flow through the gas tube. An actuator disposed on a side of the upper receiver enables operating the plug. The actuator enables a practitioner to adjust the flow of expanding gases without moving the firearm out of a shooting position. The actuator includes a key that may be turned by a rim of an ammunition cartridge.

US12760982 - Firearm suppressor

Various systems, methods, and apparatuses related to a firearm suppressor are provided. An example suppressor for a firearm includes an inner body and an external shroud. The inner body may include a muzzle attachment portion and a plurality of baffles. The baffles may each define an opening, and the openings of the plurality of baffles may collectively define a linear projectile path through the inner body along an axis extending from a proximal end of the suppressor to a distal end of the suppressor defining an exit opening. The external shroud may removably couple to and at least partially cover the inner body. The external shroud may permit at least a portion of propellent gas within the inner body to exit the suppressor via a secondary opening defined between the inner body and the external shroud.

US12760983 - Sound, flash, and heat dissipating firearm suppressor

Embodiments described herein relate to suppressors for reducing or eliminating sound, flash, and/or heat generated by firearms while discharging projectiles. The suppressor includes a unitary structure containing a cone shaped nozzle disposed at one end of a body. The body has a plurality of baffles surrounding a central bore, a breech end opposite a faceplate, and a plurality of cooling channels spanning a length of the body. Each cooling channel has a first opening at the breech end and a second opening at the faceplate. The unitary structure further contains an outer ring spanning from the breech end to at least the faceplate, a longitudinal wall spanning from the breech end to the faceplate, and a plurality of radially oriented walls extending between the longitudinal wall and the outer ring. The plurality of cooling channels is disposed between the longitudinal wall, the outer ring, and the radially oriented walls.

USRE051070 - Primer for firearms and other munitions

A primer includes a layered thermite coating comprising alternating layers of metal oxide and reducing metal (thermite) deposited upon a substrate. A carbide-containing ceramic layer is disposed within the alternating layers of metal oxide and reducing metal.

US12753998 - Subsonic firearm cartridge

Firearm cartridges are provided. The firearm cartridge includes a projectile and a cartridge case. The cartridge case includes head, body, shoulder, and neck sections. The cartridge case further includes a case wall. The case wall defines a chamber that extends from the head section to the neck section and has at least a first thickness about the body section and a second thickness about the shoulder section, the second thickness being less than the first thickness. The case wall about the shoulder section defines a hollow volume. The case wall about the neck section engages with the projectile, and the case wall about at least at least a portion of the body section is in contact with the projectile. The chamber is separated into a first chamber portion within the body section and a second chamber portion within the shoulder section by an engagement between the projectile and the wall.

US12747921 - Increased capacity ammunition magazine

Provided is an increased capacity firearm ammunition magazine with a metallic body. The body is dimensioned to compatibly replace a (OEM) polymer or polymer over metal single stack magazine. The body has walls with exterior dimensions compatibly matching those of the OEM magazine and that are thinner than those of the OEM magazine. The thinner walls allow an at least partially laterally offset arrangement of cartridges therein. A longitudinal exterior ridge extends along a forward wall of the body and is configured from the metallic body walls and sized to compensate for forward-to-aft dimensioning difference compared to that of the OEM magazine.

US12747924 - Sectioned reducing barrel system and method of use

A stepped, stabilized, sectioned reducing barrel for firearms is disclosed. The application enables the efficient use of standard cartridges by applying a series of bore sections that stabilize a projectile, reduce its diameter in a controlled manner, re-stabilize the shape, and finally impart rifling spin. This improves ballistic performance, reduces material usage, and extends barrel life without the need for specialized ammunition.

US12747935 - Firearm projectile device

A firearm projectile device is provided. The device is comprised of a projectile body with a partially hollow area that allows air to travel through the projectile and reduces the projectile's coefficient of drag. Both ends of the device are preferably pointed to further reduce the coefficient of drag of the device. In addition, the second end attaches to a fitted gas block that seals the projectile from a propellant within the casing of the device.

US12742604 - Firearm magazine assemblies

A magazine assembly includes a magazine body, a follower disposed at least partially within the magazine body, a spring disposed within the magazine body, a floorplate disposed at a lower end of the spring, and a baseplate attached to a lower end of the magazine body. The magazine body includes an internal cavity for holding at least one cartridge such that a front to rear length of the internal cavity is approximately half of an overall front to rear length of the magazine body.

US12742606 - Firearm noise suppressor

A sound suppressor for a firearm comprising a plurality of axially aligned baffles disposed within an outer sheath having a proximal entry opening and a distal exit opening, each axially aligned baffle comprises a proximal metal gas diffuser having a passage formed therethrough to cooperatively form an interrupted exhaust gas channel to direct the exhaust gas generated when the firearm is fired as the exhaust gas migrates from the proximal entry opening to the distal exit opening through the interrupted exhaust gas channel and a distal carbon fiber shell partially embedded in a corresponding proximal metal gas diffuser and including a central cavity aligned with the corresponding proximal metal gas diffuser such that the proximal metal gas diffuser is disposed in the central cavity of the adjacent distal carbon fiber shell to cooperatively form a gas expansion chamber to dissipate a portion of the exhaust gas as the exhaust gas migrates from the proximal entry opening to the distal end opening of the sound suppressor.

US12742620 - Trackable ammunition

Disclosed are ammunition and ammunition tracking systems. The ammunition and ammunition tracking system may include a first projectile and a marker. The marker may be associated with the first projectile. The marker may contain a unique signature such that the first projectile may be identifiable from a second projectile.

US12742622 - Multi-part projectile with anti-rotation coating

Described herein are multi-part projectiles that include a high-friction coating as part of an interface between parts of the projectile body. The high-friction coating reduces the probability that projectile parts coupled at the interface would rotate relative as the projectile is launched, thus enhancing the reliability and accuracy of the projectile. In one example, a multi-part projectile includes a projectile body having first and back sections coupled by an interface. The front section has a front land and the back section has a back land. The threaded interface restrains the rotation of the projectile body first and back sections. A high-friction coating is disposed on at least one of the lands of one or both the front and back sections. The high-friction coating has a co-efficient of friction greater than the parent metals against each other alone, without the high-friction coating disposed therebetween.

US12742623 - Artillery projectile with segmented body

The present disclosure introduces an apparatus comprising an artillery projectile, the artillery projectile comprising: a body comprising external threads; and a band threaded to the external threads and configured to cooperate with an inner surface of a barrel of an artillery piece to thereby impart rotation to the artillery projectile during launch from the artillery piece.

US12742624 - Projectile system

A projectile system is described, the projectile system includes a projectile body, the projectile body including a front end portion that tapers to a point at the front end and the front end portion of the projectile body is dimensionally smaller than a bore of a firearm system, the projectile body including a driving band portion behind the front end portion of the projectile body, the driving band the driving band portion being dimensionally equal to a caliber of the firearm system and dimensionally greater than a bore diameter of the firearm system, such that the driving band portion comes into contact with the bore of the firearm system when the projectile passes through the bore of the firearm system.

US12742625 - Case length trimmer (CLT) with micro-adjustment tool and method of using same

A Case Length Trimmer (CLT) combines three cutting features in a single hand tool with independent micro adjustability. The CLT operates to cut a ammunition casing to an overall length and chamfers the inside and outside case mouth diameters. Customization with multiple pilots and flash hole pin sizes maintain a consistent cut. The CLT uses these components to set actual overall case length for accuracy. The CLT can also utilizing a Micro-Adjustment Tool (MAT) for allowing precision adjustment of each parameter. These tools are can be used by individually and collectively adding a new level of consistency and precision to ammunition reloading.

US12736315 - Jacketed projectile and method of manufacture

Provided is small arms ammunition projectile ( 24 ) and manufacturing method having a core ( 10 ) with a longitudinal core axis, a forward portion ( 18 ), and a rearward end ( 14 ). The core ( 10 ) has a rear portion ( 16 ) with an edge ( 26 ) that may be chamfered or radiused, a first portion ( 28 ) being frustoconical, and a second portion ( 30 ) adjacent the first portion ( 28 ) being substantially cylindrical. The jacket ( 12 ) has a longitudinal axis ( 99 ) and longitudinally extending socket ( 45 ) to receive the rear portion ( 16 ) of the core ( 10 ). The socket ( 45 ) has a socket bottom ( 46 ), a first socket portion ( 50 ) being frustoconical, and a second socket portion ( 52 ) adjacent the first socket portion ( 50 ) being substantially cylindrical. The core ( 10 ) and jacket ( 12 ) are shaped such that when assembled, the frustoconical portion ( 28 ) of the core ( 10 ) is seated in the frustoconical portion ( 50 ) of the socket ( 45 ) of the jacket ( 12 ), respective contact surfaces ( 31, 41 ) of the second portions ( 30, 52 ) of the core ( 10 ) and jacket ( 12 ) mate together with the longitudinal core axis ( 98 ) and longitudinal jacket axis ( 99 ) being coaxial.

US12736317 - Device and method for reloading ammunition

A reloading die comprising a die housing, a cap element, and a guide element. The die housing has an inner surface forming a housing chamber. The cap element is coupled to a first end of the die housing, and the guide element is coupled to a second end of the die housing for mounting at least in part in the housing chamber. The guide element has a main body having a first end portion and an opposed second end portion and an inner surface defining a guide chamber. The inner surface of the guide element has disposed at a position axially spaced from a first end portion and from a second end portion a radially inwardly extending guide flange element. The guide flange element has a guide flange opening formed therein, and is configured and positioned to move axially within the housing chamber.

US12729767 - Armament system with a non-rotating slip-fit labyrinth seal

A stub base seal comprises a non-rotating slip-fit labyrinth seal to provide additional sealing properties. The labyrinth seal serves to capture errant gasses in the event of a partial leakage between the stub base and a concentric surrounding surface and leverages eddy flow effects to induce back flow impingement thereby reducing the flow rate through a leaking cavity.

US12729922 - Linkless ammunition handling system

A linkless ammunition handling system for a medium caliber weapon has a first magazine configured to store a plurality of individual ammunition rounds. The first magazine conveys ammunition rounds to a first magazine interface unit. The first magazine interface unit conveys ammunition rounds to a first flexible feed chute subassembly. The first flexible feed chute subassembly conveys ammunition rounds to a first gun interface unit. The first gun interface unit conveys ammunition rounds to a gun feeder. A second magazine is also configured to store a plurality of individual ammunition rounds. The second magazine conveys ammunition rounds to a second magazine interface unit. The second magazine interface unit conveys ammunition rounds to a second flexible feed chute subassembly. The second flexible feed chute subassembly conveys ammunition rounds to a second gun interface unit. The second gun interface unit conveys ammunition rounds to the gun feeder.

US12729923 - Translucent magazine for a firearm

A translucent magazine for a firearm may be formed from a mixture of Polyetherimide (PEI) and at least one of the following: Polyphenylsulfone (PPSU), Polyethersulfone (PES) and Polysulfone (PSU). The translucent magazine including a follower, floor plate, and a follower spring. The follower being opaque. The follower residing within a casing.

US12729941 - Artillery round with rocket motor delay

Rocket-assisted artillery rounds and methods for firing the same are described herein. In one example, a rocket-assisted artillery round includes a projectile body, rocket fuel disposed in the projectile body, an ignitor positioned to ignite the rocket fuel, and an ignition control system. The ignition control system includes a controller coupled to first and second sensors. The first sensor is configured to detect a first metric. The first metric is indicative of rotation of the projectile body. The second sensor is configured to detect a second metric. The second metric is indicative of setback of the projectile body. The controller is configured to output an activation signal to the ignitor based on the first metric and the second metric.

USD1146405 - Shotgun shell dispenser

US12723009 - Propellant charge

The invention is directed to a propellant charge for guns, to a combination of a propellant charge and a primer, to a firearms cartridge, and to a method for modifying the surface of a propellant charge. The propellant charge of the invention comprises multiple propellant grains, wherein an exterior part of part of the propellant grains has been subjected to a surface modification treatment comprising the successive steps of suspending propellant grains in water to prepare a slurry, adding an organic solvent to the propellant grains before, after and/or during the preparation of the slurry, mixing the slurry that comprises water and organic solvent for a period of 120 minutes or less, lowering the concentration of organic solvent, removing organic solvent, and drying the propellant grains to remove water; wherein part of the propellant grains has not been subjected to the surface modification treatment.

US12723830 - Harmonically balanced firearm suppressor system

A suppressor system of a firearm is provided. The suppressor system comprises a plurality of shims; a casing having a proximal end and a distal end; a first endcap coupled to the proximal end of the casing; a removable baffle disposed within the casing; a second endcap coupled to the distal end of the casing; and a plurality of adjustable weights coupled to the second endcap. The adjustable weights and shims of the suppressor system are configurable to modify the vibration harmonic waveforms of a barrel of the firearm once a bullet is fired. As a result, both consistency and accuracy for rifles or pistols to which the suppressor system is attached are improved.

US12723856 - Multifunctional composite projectiles and methods of manufacturing the same

Composite projectiles include various material compositions, diameters, and cavities within the projectiles having a variety of cavity diameters, sidewalls, and bottoms selected and formed to induce different levels of penetration and disintegration of the composite projectiles upon impact with targets.

US12723858 - Directed energy ignition of standard primers

Described herein are systems and methods for igniting ammunition via directed energy upon standard primers designed for mechanical or electrical ignition, wherein ignition is produced by methods originating from outside of the cartridge and without modification to the primer, cartridge, or ammunition wherein the cartridge can be fired using either the outlined methods of a directed energy pulse or a traditional mechanical or electrical method.

US12716683 - Muzzleloader power cell with primer

Muzzleloader systems including a pre-packaged propellant charge with a primer and receptacle. The muzzleloader system may include a propellant containment vessel separate from the primer and the projectile and that doesn't contact with the projectile until assembly. The muzzleloader may be rear loading, with a constriction portion forward of the breech chamber. The propellant containment vessel may include a body portion having a forward opening, with a propellant charge disposed therein and a cap portion that is crimp rolled within the mouth of the vessel to seal the forward opening. The closed end of the propellant containment vessel may define a primer receptacle configured to receive the primer. The receptacle may define a depth that is less than the primer height so that, when inserted into the receptacle, the primer extends rearwardly beyond the containment vessel. The muzzleloader system may be configured to fire only specifically configured propellant containment vessels.

US12704335 - Handgun and magazine therefor

A handgun has a grip portion defining a magazine well, the grip portion having a web region configured to be grasped between a thumb and an index finger, a forward portion of the web region defining a first width. The grip portion also has a palm region configured to be grasped by a user's palm, the palm region defining a second width greater than the first width. A magazine is configured to be received in the magazine well and includes a hollow magazine tube with a single-stack portion and a double-stack portion positioned below the single-stack portion. For example, front portions of the opposite tube sidewalls have a stepped shape between the upper tube end and the double-stack portion.

US12704359 - Plastic cartridge case for artillery shot

The invention relates to ammunition, in particular to the construction of composite artillery cartridge cases and can find wide application in the production of general cartridge cases with plastic main body for artillery shots with split-cartridges and unitary loading. The abovementioned cartridge case contain a metal bottom and a plastic body fixed to it, centrally in the metal bottom is made a cylindrically shaped protrusion in which a stepped hole is formed, in which a primer for artillery cartridges is mounted by means of a threaded connection, as at the metal bottom of a plastic main body is placed a mounting ring. In the metal bottom 1 at least two blind holes are formed, with a diameter equal to 0.1 to 0.25 of the diameter of the metal bottom 1 and a depth of 0.35 to 0.5 of the thickness of the bottom of the metal bottom 1 , and in the bottom of the plastic main body 2 are formed at least two protruding, fixing elements 6.

US12704360 - Carbon fiber ammunition casing

A carbon fiber reinforced ammunition casing consists of a singular piece or two complementary longitudinal half sections coupled together. The half sections are formed with radial edges having complementary tongues and grooves to allow coupling of the half sections to complete the casing. A weld is applied along each seam where the half sections couple together and excess weld material is removed by press proofing. Each singular piece or half section is formed by injection molding or additive manufacturing of a mixture of carbon fiber and polymer.

US12704362 - Customizable projectile designed to tumble

A projectile may include a first portion having a first cylindrical portion with a first flat end surface, a section extending from the first cylindrical portion at an acute angle, and a tip section extending from the section and terminating in a tip. The projectile may include a second portion having a second cylindrical portion having a second flat end surface. The projectile may include a trailing portion with generally frustoconical shape, the trailing portion tapering towards a trailing end. The projectile may include a post contacting each of the first flat end surface and the second flat end surface, the post being cylindrical and having a post diameter that is less than each of a diameter of the first cylindrical portion and the second cylindrical portion. The projectile is configured to tumble and break upon impact with a target.

US12704363 - Non-destructive projectile recovery

A method and apparatus for the intact recovery of ammunition projectiles. A high pressure fluid cutting device severs the casing of the ammunition cartridge, rearward on the cartridge beyond the rearward extent of the projectile. An automated feeding apparatus collects, orients, and feeds the first halves so severed to a separation press. The separation press includes a press ram, and a brace block. The brace block has a through opening sized to pass the projectile without alteration, and an internal side wall engaging the first half by the portion of the casing. The method includes a pressing force applied to the first half by contacting a rearward extent of the projectile, until the projectile separates from the portion of the casing.

US12693086 - Manually assisted belt fed machine gun drum assembly

A cylindrical machine gun ammunition carrier drum device with hand crank and spindle, which allows operator to regulate belt-fed ammunition at a proper cyclic rate of fire and reload linked ammunition in an efficient, accelerated manner. This retract and release belt-fed ammunition method would provide proper tension and uniformity to the linked rounds, preventing the weapon from malfunctioning and improve cyclic dispersion of ammunition. This method applies to all calibers of belt-fed personal and crew-served automatic weapons. The external hand crank and internal spindle would work in unison to recover the belt if it is yanked from the cylindrical drum container prematurely. A flexible warning device ribbon connected by ammunition links would ensure all rounds are expended from within the drum when abridged from spindle to belt. Additionally, this internal warning device can be linked between belts at operator's preference.

US12687356 - Base recovery device and gun equipped with such a device

A base recovery device and a gun equipped with such a device includes a structure extendable between a non-spread out state and a spread out state and having a base-receiving opening delimited by first and second arms parallel to each other, at least one lever which pivots and supports the second arm, and a mechanism for moving the lever. The mechanism includes an actuating member, a drive assembly and a clutch assembly arranged such that at least one lever is automatically moved to an unfolded position, in which the structure is in the spread out state, when the breechblock is moved from closed position to open position during the gun recovery stroke, and such that at least one lever is automatically moved to a folded up position, in which the structure is in the non-spread out state, before the end of the recovery stroke and independently of the breechblock movement.

US12687377 - Smart shell

According to an embodiment of the present invention, a smart shell mounted on a gun barrel having a rifle formed on an inner circumference, and formed to hit a military target area by using a plurality of scattering pieces includes: a warhead part having the scattering pieces embedded therein; a cover part having one or more grooves provided on an outer circumference and coupled to cover the warhead part, and separated from the warhead part by a difference in rotational speed relative to the warhead part when close to the target area; and a propulsion part providing a propulsion force to the warhead part.

US12680795 - Cartridge of a firearm, cartridge chamber, combination consisting of a lock and cartridge chamber of such a cartridge, and firearm

The invention relates to a cartridge of a firearm, comprising a cartridge case implemented in the manner of a bottleneck case for receiving a projectile, wherein the cartridge case has an overall length (L 3 ) of 37.50 mm (1.4764″) to 40.50 mm (1.5945″), preferably of 38.50 mm (1.5157″) to 39.50 mm (1.5551″), particularly preferably of 39.00 mm (1.5354″), and the length of the case neck—case neck length (L 3 -L 2 )—is selected such that the ratio of the diameter (G 1 ) of the projectile ( 8 ) to the case neck length (L 3 -L 2 ) of the cartridge case is between 1.19 and 1.36, preferably between 1.26 and 1.36, and particularly preferably between 1.26 and 1.27. The invention further relates to a cartridge chamber, to a combination of breech and cartridge chamber of such a firearm, and to a firearm.

US12680797 - Projectiles, reactive compositions for projectiles and articles containing the reactive composition

A projectile including a reactive composition is disclosed. The reactive composition includes at least one fuel comprising a titanium-boron composite, at least one oxidizer, and at least one metal hydride. When the projectile penetrates through a surface of a target having a volume of 0.2 m 3 , the reactive composition is configured to cause, behind the surface of the target, at least one of an overpressure of greater than 36 pounds per square inch (psi) or an incendiary effect duration of greater than 70 milliseconds. The reactive composition may be configured to partially or entirely surround a pin or penetrator. The projectile may lack a pin or penetrator, and the reactive composition is contained within a metal tube or cup configured to travel toward, within, and/or behind a surface of the target, wherein the process produces a punch out from the target, thereby acting as a second projectile, which enhances lethality.

US12669301 - Integrated feed ramp for a shotgun

Described herein is an integrated feed ramp for a shotgun, methods for making same, and methods of retrofitting existing firearms, wherein the integrated feed ramp feeds shells directly into the loading port of the magazine tube of the shotgun.

US12669302 - Firearm suppressor

A firearm suppressor including an inner chamber and an outer chamber surrounding the inner chamber, wherein the firearm suppressor includes at least one vane, the vane having an edge across which fluid flows, said edge of the vane having a labyrinth weir formation to assist with energy dissipation as the fluid flows across the labyrinth weir.

US12663228 - Ammunition magazine with asymmetric feeding

This disclosure describes systems, methods, and apparatus for a magazine assembly for a firearm, the magazine assembly comprising: an elongated housing, a spring positioned in an interior of the housing, a first and second plate at a proximal end of the housing, at least one follower configured to support one or more cartridges and move or slide within the housing based on a compression and decompression of the spring, one or more feed lips positioned at a distal end of the housing, the one or more feed lips adapted to prevent upward movement of a topmost of the one or more cartridges until a bolt or slide chambers the topmost of the one or more cartridges, and wherein the topmost cartridge is arranged off-center from the bolt of the firearm so as to increase an engagement or overlap between the bolt and the topmost cartridge.

US12663230 - Firearm attachable bullet trap

A firearm attachable bullet trap ( 2 ) including a hollow body ( 3 ) configured to be releasable connected a muzzle end ( 7 ) of a rifle barrel ( 8 ) of a firearm ( 1 ). The hollow body ( 3 ) defining a ballistic plate chamber ( 9 ). The firearm attachable bullet trap ( 2 ) including a ballistic plate ( 12 ) in the ballistic plate chamber ( 9 ), and a bullet deforming part ( 14 ) within the hollow body ( 3 ), wherein the bullet deforming part ( 14 ) has a central channel ( 15 ), wherein the central channel ( 15 ) having a central axis A. The central channel ( 15 ) of the bullet deforming part ( 14 ) includes an open-sided channel section ( 17 ) that is radially limited by stationary cutter blades ( 18 ), wherein each stationary cutter blade ( 18 ) has a second proximal end ( 19 ) and a second distal ( 20 ). The stationary cutter blades ( 18 ) being equally spaced about the central axis A of the central channel ( 15 ).

US12663246 - Ignition device for ammunition, in particular medium-caliber ammunition, and associated method for ignition or for self-destruction of ammunition, in particular medium-caliber ammunition

The invention relates to an ignition device for ammunition, in particular medium-caliber ammunition, comprising at least one battery and at least one electric or electronic ignition-chain component, wherein: the battery has a battery housing; an electrolyte and at least two electrodes are located in the battery housing; an explosive charge of the ammunition can be caused to explode by means of the electric or electronic ignition-chain component, and the energy required to trigger the electric or electronic ignition-chain component can be provided by means of the battery. The ignition device provides for a sufficient amount of energy, and the volume in the ignition device is at the same time utilized particularly efficiently in that the battery housing has a cup-shaped recess, and at least part of the at least one electric or electronic ignition-chain component is located in the cup-shaped recess.

US12644660 - Rifle with straight pull bolt action

A rifle having a straight pull bolt assembly with a bolt handle that extends outward and downward from a bolt operation mechanism. The bolt handle rotatable a limited rotational range forward and rearwardly about a horizontal axis for operating the mechanism. The handle can be reconfigured to position its rotational range about the horizontal axis and can be attached to the mechanism at either left or right sides to provide for ambidextrous operation. Bolt heads, lower frame members with magazine wells, and barrel assemblies can be readily swapped to change ammunition. The bolt assembly can be unlocked by firing or by a thumb push button release at the backside of the mechanism. A bolt removal release mechanism is forward of the thumb pushbutton and an ejector includes a spring bias and cam follower surface to reliably eject casings.

US12644682 - Ignition device

An ignition device includes an igniter that accommodates an ignition charge to be ignited by energization, and a holder that includes an insertion port for inserting the igniter, and is integrated with the igniter by fitting the igniter from the insertion port and press-fitting a tube body into a press-fitting portion. An end portion of the tube body is fitted into an annular groove formed in a bore, and a labyrinth structure is formed by an inner wall portion, an end surface portion, and an outer wall portion of the end portion, and the annular groove.

US12644684 - Ammunition cartridge

Systems, methods and apparatus are provided through which in some implementations an ammunition cartridge includes a cartridge casing having a longitudinal center axis, a powder pocket positioned adjacent to the cartridge casing, a piston bore positioned adjacent to the powder pocket, a piston in the piston bore, and a payload bay positioned adjacent to the payload bay, wherein the piston is not coupled to the cartridge, wherein the piston is in contact with the payload bay wherein a diameter of the powder pocket is less than an inside diameter of the cartridge casing to provide a reduced velocity to the payload.

US12644685 - Common carrier munition

The invention relates to a common carrier munition ammunition device, more particularly to common carrier payload delivery shell. There is provided a common carrier munition suitable for use for a high explosive comprising a tail unit, a main body which comprises a payload cavity for receiving a payload, a fuze, and located between said main body and the fuze an ogive element, wherein the payload comprises a removable liner, wherein the removable liner comprises a high explosive, such that said removable liner and high explosive may be removed from the payload cavity.

US12638260 - Systems and methods for enhanced firearm suppression

A firearm suppressor. In an embodiment, the suppressor includes an outer tube and a baffle core disposed within the outer tube. The baffle core includes a body having an exterior surface spaced from the inside surface of the outer tube. A bore extends through the body from an inlet to an outlet permitting a bullet to pass through the baffle core. A plurality of slots or through holes extend through the body between the bore and the external surface of the body permitting gases to expand outward toward the outer tube. A plurality of blind cavities are formed into the external surface of the body and extending into the body without penetrating the bore. These blind cavities provide additional surface area and slow the exit of gases from the suppressor and further cool the gases.

US12638277 - Ammunition tuned for a given firearm barrel length and system and method for making the same

A system and method for the determination of an optimal ammunition round based upon a barrel length of a given firearm and resulting ammunition. The ammunition is preferably provided in a single load for a given caliber and bullet optimized for a range of barrel lengths, wherein a user can select a preferred single load for a given firearm regardless of barrel length.

US12638279 - Projectile with a tapered structure within a forward cavity

A projectile comprising a bullet slidably mounted within a cartridge, which includes a propellant to propel the bullet when fired. The bullet features a head section and a trailing section located aft of the head section. The head section comprises one or more side walls defining a cavity with an opening at the leading end of the bullet. A tapered structure secured to the trailing section extends into the cavity, tapering in a fore direction towards the central longitudinal axis of the bullet. Upon impact with a target, the one or more side walls are configured to break away from the trailing section, and the tapered structure reduces drag and pressure build-up in the trailing section, allowing for greater penetration capabilities.

US12638282 - Ammunition sorting device

Various embodiments of the present disclosure include an ammunition sorting device. The ammunition sorting device can include a sorting tray. In some embodiments, the sorting tray can include a proximal sorting portion and a distal sorting portion. In some embodiments, a plurality of sorting lumens can be defined within the sorting tray. In some embodiments, each of the plurality of sorting lumens can extend between the proximal sorting portion and the distal sorting portion of the sorting tray. In some embodiments, a chute can be disposed adjacent the distal sorting portion of the sorting tray, the chute including a proximal chute portion and a distal chute portion. In some embodiments, the chute can define a plurality of chute lumens corresponding to each of the plurality of sorting lumens and extending between the proximal chute portion and the distal chute portion.

US12631092 - Kinetic energy perforating round and methods of use

Perforation devices including gas supply structures and methods of utilizing the same. The perforation devices include a magazine, a barrel, an action, and the gas supply structure. The magazine is configured to contain a plurality of cartridges. The barrel extends between a breech, which is configured to receive a selected cartridge of the plurality of cartridges that includes a selected projectile, and a muzzle, which is configured, upon firing of the selected cartridge, to permit the selected projectile to exit the barrel at a muzzle velocity and with a muzzle trajectory. The action is configured to transfer the selected cartridge from the magazine to the breech of the barrel and to fire the selected cartridge. The gas supply structure is configured to provide a gas stream to the barrel and includes a surface gas source and a gas supply conduit extending between the surface gas source and the barrel.

US12631413 - Arrangement for feeding ammunition to a weapon

The present invention relates to an arrangement for feeding ammunition to a weapon mounted to an elevation device for elevation about an elevation axis, the arrangement comprising an ammunition feeding device arranged between an ammunition channel, from which ammunition is guided, and said weapon, said feeding device being rotatably arranged about a feeding axis, said feeding device having at least one ammunition grip member configured to rotate about said feeding axis between an ammunition collection location at said ammunition channel and an ammunition release location at said weapon, wherein said arrangement is configured such that said at least one ammunition grip member is configured to be rotatably adaptable relative to said feeding axis based on the elevation of said weapon so as to facilitate feeding the ammunition to the weapon in connection to the ammunition release location independent of elevation of said weapon.

US12631414 - Gun magazine including spring with uneven stack height upon compression

A gun magazine spring and magazine assembly having a novel design. The coils of the spring are configured to nest in certain regions and overlap in others. The result is that—as the spring nears its fully compressed state—the spring has an uneven stack height from left to right. The uneven stack height produces a predictable lateral displacement of the follower. The higher of the two stacked sides of the spring protrudes laterally outward through a lateral relief in the follower. This feature allows the spring and follower to overlap in the vertical direction to a greater extent than would be possible with conventional laterally-even spring nesting. The additional overlap produces additional internal space while also ensuring that the spring and follower assembly behave in a predictable manner.

US12624911 - Firearm receiver assembly with ammunition belt feeding capability and firearm comprising same

A firearm receiver assembly comprises a receiver body, a top cover, and an ammunition advancing mechanism mounted on the top cover. The top cover is pivotably attached at a mounting portion thereof to a mounting portion of a receiver body for enabling the top cover to be pivotable about a top cover pivot axis between an open position and a closed position with respect to the receiver body. The top cover pivot axis extends parallel to a bore axis of the receiver body.