Patent ID: 9103610
Filing Date: 2015-08-11
Classification: F41A

Abstract:
1. A gas block for a firearm, comprising: a body for mounting on a barrel of the firearm, said body having a gas hole provided therein, adapted to mate with a firearm gas tube and firearm barrel gas discharge hole; and a hand-operable, in absence of use of a tool, gas block variable extensible adjustment member for manually adjusting the amount of gas transferred through the gas hole from the firearm barrel to the firearm gas tube, wherein said gas block variable extensible adjustment member comprises an extensible member that adjustably extends into and out of a portion of a gas metering chamber for adjustably controlling transfer of gas from the gas hole to the firearm gas tube, and wherein said gas block variable adjustment member has a keyed portion thereon and said body has corresponding portions for interacting with the keyed portions for providing stepwise adjustment of the amount of gas transferred.