Patent ID: 7891284
Filing Date: 2011-02-22
Classification: F41A

Abstract:
1. A firearm comprising; a body; a bolt assembly reciprocating within the body; a barrel defining a bore and extending from the body; a gas block defining a chamber and connected to the barrel; the gas block and barrel defining a first gas passage communicating between the barrel bore and the gas block chamber; the gas block defining a second gas passage communicating between the gas block chamber and an atmosphere outside of the gas block; a gas regulation element having a first position and a second position, the regulation element operable to constrict at least one of the first and second gas passages by different amounts in the first and second positions; and the gas regulation element including a latch element operable to engage an accessory device mounted to the firearm when the gas regulation element is in the first position, and operable to remain disengaged from the accessory device mounted to the firearm when the gas regulation element is in the second position; and wherein the accessory device is a sound suppressor.