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| Number | Title | Issue Date |
| 7316091 | Firearm bolt carrier with mechanical/gas key A firearm includes a barrel having an end coupled to a receiver. A reciprocating bolt carrier is carried by the receiver and movable between a locked position and an unlocked position. The bolt carrier includes a buttress formed in a top surface thereof. A key inclu... | 01/08/2008 |
| 7299737 | Method and apparatus for an action system for a firearm A method and apparatus providing an action system for a firearm. The action system includes a primary roller-lock mechanism located rearward of an ejection port. The primary roller-lock mechanism includes a bolt and a first primary roller caged within the bolt. A bo... | 11/27/2007 |
| 7225574 | Forwardly movable assembly for a firearm A forwardly movable assembly for a firearm, the forwardly movable assembly adapted to be disposed in operative relationship relative to the other operative parts of a firearm, the firearm having in operative relationship each with one or more of the others: a barrel... | 06/05/2007 |
| 7162824 | Modular trigger group for firearms and trigger group installation method A module housing is adapted to be inserted into an operating position in the trigger group receiving area of a firearm. The module housing includes at least one pin receiver defined by two openings formed in the module housing, one on each lateral side of the housin... | 01/16/2007 |
| 7086319 | Device to provide an electrical connection between a recoiling mass of a weapon and a fixed cradle A device providing an electrical connection between the recoiling mass of a weapon and a fixed cradle. The device incorporates at least one connector formed of a plug and socket, one of which is integral with the cradle and the other with the recoiling mass, the ele... | 08/08/2006 |
| 7032340 | Breech construction for firearms In an autoloading gun construction having the breach end of a barrel removably assembled to the forward end of a barrel extension which is positioned between and secured to wall sections of two opposing receiver plates of a receiver section, the improvement comprisi... | 04/25/2006 |
| 7000345 | Underbarrel shotgun A shotgun comprises a receiver made from a first material; barrel having a portion extending into the receiver and made from a second material; a collar nut securing the barrel to the receiver; a bolt assembly disposed within the receiver and including a locking blo... | 02/21/2006 |
| 6971202 | Gas operated action for auto-loading firearms A gas operated action for auto-loading guns may comprise a receiver, a biasing spring, a bolt-carrier reciprocable within the receiver, a bolt having a cam pin, and an action rod fixedly attached to the receiver. The cam pin may engage the action rod during recoil t... | 12/06/2005 |
| 5736667 | Automatic firearm arranged for high safety and rapid dismantling A portable firearm employs a frame and an upper mechanism having a bolt and a sliding hammer. A barrel assembly is supported on the frame and has an axis, a muzzle and a breech. The sear transversely straddles the barrel assembly and can project above its... | 04/07/1998 |
| 5635664 | Functioning mechanism for a small calibre automatic weapon A functioning mechanism for a small caliber automatic weapon includes a translatable and rotatable sear, and a rotatable hammer. The sear includes a hooking element adapted to contact a bearing surface of the hammer to render the hammer immobile. Rotating... | 06/03/1997 |
| 5339721 | Tripping mechanism for semiautomatic and automatic firearms The invention relates to a tripping mechanism for semiautomatic and automatic firearms with a closed-type bolt carriage and which can be used in either a single shot firing mode or an automatic firing mode. The mechanism has a sear 4 slidably fitted on th... | 08/23/1994 |
| 4693170 | Firing mechanism for firearm A firearm having a hammer and a bolt mechanism capable of recoil movement behind the hammer, so that the bolt assembly in recoil momentarily clears the hammer. A timing lever senses rearward travel of the bolt assembly and prevents the hammer from release... | 09/15/1987 |
| 4679487 | Projectile firing weapon with a replaceable firing mechanism actuator cassette A projectile firing weapon is disclosed having a simplified construction and a consequent increase in reliability. The trigger and firing mechanism are completely contained within an easily removable and replaceable cassette which may simply be dropped in... | 07/14/1987 |
| 4553468 | Repeating firearm trigger mechanism A machinegun pistol is described, which can be reliably switched between semi and full automatic modes by an operator holding the gun in a natural two-hand grip. The gun includes a bolt (20, FIG. 1) and a firing pin device 22 that each slide longitudinall... | 11/19/1985 |
| 4469006 | Automatic fire-arm The automatic fire arm is provided with a bolt and hammer which reciprocate along the axis of the barrel. A first spring normally biases the bolt against the breech end of the barrel and a second spring normally biases the hammer against a firing pin whic... | 09/04/1984 |
| 4433610 | Open bolt firing mechanism for automatic firearm An open bolt firing mechanism for an automatic firearm (10) has a reciprocating bolt assembly (20) with a sear abutment (32) which is engaged by a searing surface (46) on a hammer (36) during counter-recoil for terminating forward movement of the bolt ass... | 02/28/1984 |
| 4421009 | Repeating firearm A machine gun pistol is described, which can be reliably switched between semi and full automatic modes by an operator holding the gun in a natural two-hand grip. The gun includes a bolt (20, FIG. 1) and a firing pin device (22) that each slide longitudin... | 12/20/1983 |
| 4022105 | Automatic weapon firing mechanism An automatic weapon firing mechanism consisting of a slideably movable bolt arrier with cam slots cooperating with pins on the bolt and firing pin for rotating the bolt to lock it in battery position for firing and to cock the firing pin during recoil. Con... | 05/10/1977 |
| 3960053 | Automatic firearm having anti-bounce sear A belt-fed, gas-operated, air cooled automatic firearm having a novel mechanism for transferring link-connected ammunition rounds from a novel ammunition magazine to a feed position in an automatic firearm and having a novel sear mechanism including an an... | 06/01/1976 |
