Patent ID: 8122632
Filing Date: 2012-02-28
Classification: F41A

Abstract:
1. A shotgun comprising a receiver, a magazine port into the receiver, a latch in the magazine port, and a tube connected to the receiver, the latch being configured to selectively secure a magazine in the magazine port and the latch including: a body having a first end, a second end, an inner cavity, an opening in the first end, an exterior shoulder at the first end, a first interior shoulder at the first end, a second interior shoulder at the second end, and exterior threads on the second end of the body, the exterior shoulder and exterior threads connecting the tube to the shotgun receiver; a piston having a first end and a second end, the piston being positioned within the cavity, wherein the first end of the piston includes a latch profile; and a spring positioned in the cavity between the piston and the second interior shoulder; wherein a portion of the latch profile protrudes out of the opening in the first end of the body when the spring is in an uncompressed state.