Patent ID: 11933574
Assignee: SAVAGE ARMS, INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 10:
11. The semiautomatic shotgun of claim 10, wherein the piston is an annular shaped piston and the piston cylinder being configured as a gas block having a block bore, the magazine tube extending through the block bore, the piston sleeve extending into the block bore defined by the gas block, a portion of the piston sleeve being disposed between an outer surface of the magazine tube and inner surface of the gas block, the automatic shotgun further comprises:
a first ring disposed between an inner surface of the piston sleeve and an outer surface of the magazine tube, the first ring having a slit; and
a second ring disposed between an outer surface of the piston sleeve and an inner surface of the gas block, the second ring defining a slot.