Patent ID: 8272308

Claim:
A weapon, comprising: a barrel fixed to a receiver; a sprocket rotatably fixed to the receiver and having a longitudinal axis substantially parallel to a longitudinal axis of the barrel; a forward pawl selectably engageable with a forward end of the sprocket and reciprocable along the longitudinal axis of the sprocket, the forward pawl including a flange and being biased for engagement with the sprocket; an anti-backup pawl selectably engageable with a rear end of the sprocket and reciprocable along the longitudinal axis of the sprocket, the anti-backup pawl including a cam path and being biased for engagement with the sprocket; a feed cover rotatable about the longitudinal axis of the sprocket; and a feed slide assembly slidably engaged with the feed cover, the feed slide assembly including a front pin engageable with the flange of the forward pawl and a rear pin engageable with the cam path of the anti-backup pawl.