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.
