Modular

Patents tagged Modular

Dec 23, 2025

US12504242 - Modular lower receiver

A lower receiver includes a polymer main body having an outer surface and defining an interior. The interior of the polymer main body defines a first socket. A grip attachment body is receivable, along a first axis, into the first socket of the interior of the polymer main body. The grip attachment body includes a first threaded insert that is configured to receive a fastener for securing a grip to the lower receiver.

Dec 23, 2025

US12504244 - Modular bolt action rifle with bearings

The present disclosure presents a modular bolt action rifle system with roller bearings having an upper receiver assembly housing a barrel, a lower receiver assembly comprising an AR-style fire control system and a magazine well, a bolt carrier group assembly including a bolt carrier, top roller bearings and side roller bearings, and a handguard assembly, wherein the lower receiver assembly and its AR-style fire control and magazine well are releasably attached to the upper receiver, and prior to attachment of the barrel assembly the bolt carrier group assembly, consisting of the bolt carrier, bolt head, bolt charging handle, top roller bearings, and side roller bearings is inserted unto the upper receiver. An extension of the barrel assembly is releasably attached to the upper receiver. The barrel assembly is releasably secured by releasable attachment of the handguard assembly to a barrel extension receiver of the upper receiver assembly.

Dec 23, 2025

US12504247 - Modular firearm lower receiver assembly for rapid conversion of AR-15 type firearms to a bullpup configuration and method of assembly thereof

The present invention is a modular firearm lower receiver assembly for rapid conversion of conventionally configured modular firearms to a bullpup configuration and the method of assembly thereof. The preferred embodiment of the present invention is intended for designed use with modular firearms in the family AR-15 Type Firearms and enables a rapid conversion of a wide array of conventionally configured AR-15 Type Firearm to and a bullpup configuration. Such rapid conversion, which can generally be performed in a matter of seconds without any tools, is accomplished by decoupling and detaching the two captured receiver pins on the lower receiver of the conventionally configured AR-15 Type Firearm, removing the upper receiver assembly therefrom, and recoupling such upper receiver assembly to the present invention using two identically located receiver pins on the present invention. The present invention is universally applicable to AR-15 Type firearms of several different calibers and having an array of differences with respect to the lower receiver, upper receiver, handguard, bolt carrier group, or gas systems employed therein.

Nov 4, 2025

US12460519 - Perforating gun having modular construction

A technique facilitates perforating operations. According to an embodiment, a perforating gun system utilizes a plurality of modular perforating gun sections which are readily assembled to create a perforating gun with a desired number and orientation of shaped charge holders. In some applications, the modular perforating gun sections may be formed of plastic, e.g. injection moldable plastic, to further reduce costs and provide great flexibility with respect to construction of the desired perforating gun.

Oct 28, 2025

US12455126 - Modular frame and chassis system for a firearm

A modular firearm system has a frame with a grip configured to be held by a hand of a user and a receiving chamber formed within the grip. The system further has a chassis having a receiving channel and one or more sidewalls extending from a bottom portion of the chassis, the one or more sidewalls structured to fit within and be received by the receiving chamber of the frame. The system further has a barrel locking block structured to fit within the receiving channel of the chassis.

Oct 14, 2025

US12442611 - Modular suppressor with beveled segments

A suppressor for a gun is compatible with expanding projectiles (e.g., shot shells, pepper balls, bean bags, etc.). The suppressor includes a core configured to attached to a barrel of the gun and extend forward from the barrel. One or more baffles attaches to an external surface of the core between a rear end and a front end of the core. A housing generally surrounds the baffle and core. An end cap attaches to a front of the housing to define the front of the suppressor. The core includes a plurality of annular segments or bushings configured to limit expansion of the projectile as it traverses the suppressor, and the annular segments or bushings are spaced apart from one another and supported by rails.

Aug 12, 2025

US12385707 - Modular trigger control unit for firearms

A modular trigger control unit Is configured to be removably installed on a grip frame of a firearm and includes a locking block and a pin configured to traverse through both the trigger control unit and the grip frame. The trigger control unit has a protruding tab protruding rearward. The locking block includes slide rails extending forward, with each slide rail of the pair of slide rails having a flat wall extending downward or upward with respect to the grip frame when the trigger control unit is installed on the grip frame. The trigger control unit is secured to the grip frame by: (1) the protruding tab received in a recess on an interior wall of a beavertail portion of the grip frame; (2) the pin; and (3) one or more first physical features on the trigger control unit mating with one or more second physical features on the grip frame.

Aug 5, 2025

US12379178 - Modular firearm trigger system

A trigger system having a detachable trigger shoe. The trigger shoe is made detachable from the trigger bow while the trigger bow remains in an installed state within the pistol. A selectable detachment feature is provided for the connection between the trigger shoe and the trigger bow. The user can activate this detachment feature and remove the shoe while leaving the trigger bow in place. The user can then install a different trigger shoe while the trigger bow remains in place.

Aug 5, 2025

US12379185 - Modular firearm block

A modular firearm block that can attach to the frame of a firearm. The block can have a member that can attach to a recess on the frame. The block can also have holes for a pin and a pin connector which also attach the block to the frame of the firearm.

Jun 10, 2025

US12326311 - Modular bolt action

A modular bolt action for a bolt action firearm is provided. The bolt action includes a receiver and a bolt assembly, the receiver being reconfigurable in a variety of different ways to accommodate a variety of different bolt assemblies. In this way, the modular bolt action can be reconfigured from a left-handed action to a right-handed action and/or from a two-lug action to a three-lug action. Fabrication of the modular bolt action includes adjusting the receiver to accommodate a desired bolt assembly and engaging such bolt assembly with the receiver.

Jun 3, 2025

US12320606 - Modular pistol grip

A modular pistol grip includes one or more modular extenders configured to couple to a main grip. The modular pistol grip further includes an interchangeable backstrap configured to couple to the main grip and the one or more modular extenders. The one or more modular extenders are configured to extend a length of the modular pistol grip when coupled to the main grip.

Apr 29, 2025

US12287164 - Modular handgun

A modular handgun system comprises an elongated universal trigger frame having a pair of slide rails and an accessory rail. The trigger frame is adapted to have a trigger assembly mounted thereto. The system further comprises a grip frame having an elongated channel and a hand grip extending downwardly from the elongated channel. The trigger frame is removably mounted in the elongated channel of the grip frame. The accessory rail of the trigger frame is positioned forward of a forward end of the elongated channel of the grip frame so as to be exposed. The system further comprises a slide and barrel assembly slidably mounted on the slide rails of the trigger frame.

Apr 22, 2025

US12281872 - Hybrid free-float handguard

A free-floating handguard for mounting onto a firearm includes a tubular polymer-based handguard body allowing passage of a barrel therethrough. The handguard body has a free-floating muzzle end and a clamping end engaging a barrel nut that secures the barrel to the firearm. A downwardly extending lobe is formed on the handguard body proximate the clamping end. The handguard body may further include either or both of a first metal insert and a second metal insert. The first metal insert may be embedded within a bottom wall of the downwardly extending lobe and releasably couple with a mounting feature on a firearm sling. The second metal insert may be embedded within the downwardly extending lobe and defines a threaded bore for receiving a threaded fastener therein. The threaded fastener and second metal insert may clamp the clamping end on the barrel nut to secure the handguard body on the firearm.