Jun 24, 2025
A hydraulically dampened rotary barrel locking system for a handgun is provided which preferably includes a receiver, a barrel and a spring-loaded moveable slide. The barrel comprises one or more axially aligned locking lugs configured to allow the slide to travel down the barrel axis when the lugs align with a keyway slot in an extended lug boss at the discharge end of the slide. Felt recoil is reduced and accuracy is improved due to a more balanced slide-to-barrel mass ratio than prior art and hydraulic dampening between the barrel and slide due to improved journal bearing action.
Jun 24, 2025
A gas block for a firearm may include a body, a barrel bore extending from a first end to a second end of the body and configured to receive a portion of a barrel therein, a gas tube bore extending from the first end toward the second end and configured to receive a portion of a gas tube therein, a gas port extending from the barrel bore to the gas tube bore, and an alignment aperture extending from the gas tube bore to a top side of the body and coaxial with the gas port, with the alignment aperture being configured to allow visualization of alignment of the gas port with a barrel gas port of the barrel.
Jun 10, 2025
A firearm, including a hammer, a safety lever configured to select an operation mode, a trigger, an electromechanical sear, wherein the operation modes include an electromechanical mode, and the firearm is configured so that when changing to the electromechanical mode the safety lever moves the position of the hammer to be held by the electromechanical sear instead of by the trigger. Likewise when changing the operation mode from the electromechanical mode to other modes the safety lever moves the position of the hammer so that the hammer. is released from the electromechanical sear and held by the trigger.
Jun 10, 2025
The techniques described herein relate to methods and apparatus for a magazine release for a firearm. The magazine release includes an arm configured to engage with a magazine on a first side of the magazine, and an actuator operatively coupled to the arm and configured to transition the arm from a first position to a second position when actuated, wherein in the first position the arm is engaged with the magazine to hold the magazine and in the second position the arm is disengaged from the magazine, wherein the actuator is configured to be accessible from both the first side of the magazine and a second side of the magazine opposite the first side.
Jun 3, 2025
A trigger mechanism assembly for a firearm provides a horizontal arrangement of its sear relative to a trigger of the firearm by way of a linkage bar. The sear and a disconnector share a pivot point, wherein at each engagement surface between the pivot point and the sear and the disconnector, respectively, there is a bearing. A pair of mandibles is provided, one mandible by each of the sear and the disconnector. A spring is operatively associated between the sear and the disconnector to bias them to rotate about the pivot point dependently, whereby a first distance between the pair of mandibles is maintained. An inclined surface is provided along at least one mandible so that a downward force urged by a hammer against the inclined surface moves the disconnector independently of the sear, whereby a second distance between the pair of mandibles is greater than the first distance.
May 27, 2025
A mechanism using flexure hinges as part of the trigger and/or safety mechanism of a firearm. Flexure hinges provide relative motion between two stiff members by the elastic deformation of an arbitrarily shaped flexible connector often implemented in metallic and composite materials. The flexure hinges are formed by flexure links connecting two stiff members. The flexure links connect various parts of the trigger assembly, such as a trigger component, including a shoe, plate, or safety, to a housing of the firearm. A method of creating the mechanism provides a trigger component, a housing, and connects the two parts by a flexure link with a flexure hinge.
May 27, 2025
A breechblock assembly for a firearm includes a breechblock extending along a central axis and configured to reciprocate along a receiver of the firearm between a recoil position and a battery position. A lever on the breechblock is movable from a blocking position to a non-blocking position in response to the breechblock moving from the recoil position to the battery position. A spring biases the lever to the blocking position. When the lever is in the blocking position the lever prevents the firearm from firing.
May 27, 2025
An open frame revolver may have an upper frame and lower frame pivotally connected together, an opening located in between the upper frame and the lower frame. A spring assembly may be located in the lower frame and a trigger assembly located in the lower frame, wherein the trigger assembly is connected to the spring assembly. A tension axle located in the lower frame, wherein the tension axle on one end connected to the trigger assembly and spring assembly and on the other end has a lock. A hammer axle may be located inside a drum, wherein the drum could be pivotally supported by hammer axel and hammer axle may have a lock on one end. A hammer may be located outside of the upper frame connected to the hammer axle, a safety lock located in the lower frame, while a frame lock located on the lower frame.
May 20, 2025
An operating system for a firearm includes a trigger, a hammer, a disconnector, a pivoting arm, and a lower member. The trigger includes a lower portion, an upper portion, and a trigger pivot. The disconnector includes a lower portion, an upper portion, and a disconnector pivot. The pivoting arm includes a forward protrusion, a pivoting arm opening, and a pin extending through the pivoting arm opening. The lower member includes a lower member opening and a pin hole that is coaxial with the trigger pivot and the disconnector pivot. At least a portion of the trigger and at least a portion of the disconnector are disposed within the lower member opening. Motion of the trigger causes the forward protrusion of the pivoting arm to engage a bolt carrier group and hold the bolt carrier group in an open position.
May 6, 2025
A recoil buffer assembly for cushioning the impact of recoiling components of a firearm. The recoil buffer assembly comprises a first spring, a second spring, and a buffer. The first spring extends along a first axis. The second spring extends along the first axis. The buffer is positioned between a first end of the second spring and a second end of the first spring. The first spring is configured to act between the buffer and a bolt within the firearm. The second spring is configured to act between an end of the firearm and the buffer. A receiver assembly and firearm comprising the recoil buffer assembly are also included.
May 6, 2025
A feeder door of a feeder of a machine gun, the feeder including a feeder housing and the feeder door spring-loaded and pivotally coupled via a pivotal coupling to the feeder housing between at least an open position and a closed position, the feeder door comprising a base including a slot; a retainer lever; and a pivotal coupling independent of the feeder door and feeder housing pivotal coupling configured to spring-load and pivotally couple the retainer lever to the feeder housing between at least a stowed position with the retainer lever retracted in the slot of the base of the feeder door and a deployed position with the deployable portion extending outwardly from the slot of the base feeder door.
Apr 29, 2025
A firearm is disclosed. The firearm contains a lower receiver containing a first opening, wherein the first opening is configured to accommodate a firing mechanism, an upper receiver removably coupled with the lower receiver, a barrel removably coupled with the upper receiver, a bolt carrier assembly positioned within the upper receiver, wherein the bolt carrier assembly is movable between a locked position and an unlocked position, wherein the bolt carrier assembly contains a rear surface, wherein the rear surface of the bolt carrier assembly is positioned between the barrel and the first opening when the bolt carrier assembly is in the locked position.
Apr 22, 2025
A supplemental propulsion system for a weapon used to fire a projectile includes a barrel and chamber to hold a projectile round. A translating pressure tank surrounds a portion of the barrel, and the pressure tank is configured to translate along the barrel. A recoil spring assembly includes a spring and a pressure plate downstream of the chamber for holding the projectile round. The pressure tank is coupled to the pressure plate such that the spring is configured to stretch upon firing of the projectile and translate the pressure tank along a length of the barrel. The barrel includes a first port configured to selectively align with a first tank port during translation, for the discharge of pressurized gas from the pressure tank. The discharge of pressurized gas occurs rearward of the projectile as it passes through the barrel after firing.
Apr 22, 2025
A trigger assembly includes a housing a sear moveably connected to the housing; and a trigger piece connected to the housing and moveable between a cocked position and a firing position; the trigger piece including a trigger shoe configured to contact a user in moving from the cocked position to the firing position; the trigger piece being configured to rotate about a first axis of rotation and an orthogonal second axis of rotation in moving from the cocked position to the firing position.
Apr 15, 2025
A trigger mechanism that can be used in AR-pattern firearms has a hammer, a trigger member, a disconnector, a locking member, and a “three position” safety selector having safe, standard semi-automatic, and forced reset semi-automatic positions. In the standard semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of the hammer such that the disconnector hook catches the hammer hook, at which time a user must manually release the trigger member to free the hammer from the disconnector to permit the hammer and trigger member to pivot to the set positions so that the user can pull the trigger member to fire the firearm. In the forced reset semi-automatic position, rearward movement of the bolt carrier causes rearward pivoting of the hammer causing the trigger member to be forced to the set position, the safety selector preventing the disconnector hook from catching the hammer hook, and thereafter when the bolt carrier reaches the substantially in-battery position the user can pull the trigger member to fire the firearm without manually releasing the trigger member. The locking member is pivotable between a first position at which the locking member mechanically blocks the trigger member from moving to the released position and a second position at which the locking member does not mechanically block the trigger member allowing the trigger member to be moved to the released position. The locking member is spring biased toward the first position and moved against the spring bias to the second position by contact from the bolt carrier during forward movement of the bolt carrier as the bolt carrier reaches a substantially in-battery position.
