Patent ID: 9010233
Filing Date: 2015-04-21
Classification: F41A,F41C

Abstract:
1. A rifle in a bullpup configuration, comprising: a receiver having a trigger assembly and a magazine well; a barrel having a muzzle end disposed in front of the trigger assembly and a barrel extension attached to the receiver; a gas assist system, including a gas housing surrounding the barrel and having an annular expansion chamber surrounding the barrel, and an annular gas piston slidably disposed within the annular expansion chamber; a thrust block in contact with the gas piston, wherein the thrust block is slidably disposed along an outer surface of one or more action guide members; a rigid slide member having a first end and a second end, wherein the first end is connected to the thrust block, and wherein the second end extends behind the trigger assembly; a bolt carrier having a bolt and firing pin, attached to the second end of the slide member and slidably disposed along one or more bolt guide members; a linear hammer slidably disposed along one or more hammer guide members, adapted to travel in a direction parallel to the bolt and to contact the firing pin; and a sear assembly within the receiver having a sear member to retain the hammer, and a disconnector in communication with the sear member to release the hammer upon actuation of the trigger assembly.