초록 ▼

This invention relates to a shotgun which has low felt recoil, a reliable loading of blunt nosed shells and which can fire a high number of rounds per minute. More particularly, this invention relates to an automatic or semi-automatic shotgun which has a low felt recoil but yet reliably can be fired

This invention relates to a shotgun which has low felt recoil, a reliable loading of blunt nosed shells and which can fire a high number of rounds per minute. More particularly, this invention relates to an automatic or semi-automatic shotgun which has a low felt recoil but yet reliably can be fired at a high rate using a variety of blunt nosed shells.

대표청구항 ▼

A firearm comprising: a receiver portion having butt means for resting against the shoulder of a shooter; a barrel extending forwardly from the receiver portion, said barrel having a charging end and a discharge end; a gas tower in fluid communication with said barrel; a bolt carrier assembly slidab

A firearm comprising: a receiver portion having butt means for resting against the shoulder of a shooter; a barrel extending forwardly from the receiver portion, said barrel having a charging end and a discharge end; a gas tower in fluid communication with said barrel; a bolt carrier assembly slidably disposed in said gas tower whereby said bolt carrier assembly is actuated by gas pressure in said barrel from the discharge of a cartridge, the bolt carrier assembly further including a rearward end having a downwardly extending section having a first elongated slot with a longitudinal axis with respect to a longitudinal axis of the bolt carrier assembly, said downwardly extending section further including a second elongated slot having a longitudinal portion and downwardly directed cam portion disposed at the forward end, and a roller received in said second slot; a bolt slidably connected to the bolt carrier assembly by a transverse bar fixed to the bolt and extending through the first elongated slot in the bolt carrier assembly whereby said bar and first elongated slot cooperate to limit axial movement of the bolt on the bolt carrier assembly, the bolt further having a recess in the upper surface thereof to receive the roller when said bolt carrier assembly is in a position rearward with respect to the bolt; a firing pin disposed in said bolt; a longitudinal track portion in said receiver and having an upwardly extending recess cooperating with said roller in the bolt carrier assembly; wherein the roller is positioned in said recess in the track and in a rear portion of the second slot when the bolt carrier assembly is in a forward position with respect to the bolt and the receiver, and wherein rearward movement of the bolt carrier assembly with respect to the bolt causes the cam portion of the second elongated slot to engage the roller to move the roller into said recess in the bolt whereby said bolt carrier assembly and bolt move rearwardly with the roller engaging the track in the receiver and the recess in the bolt such that the bolt is in a fixed position with the bolt carrier assembly during rearward travel.