Patent ID: 8813632
Filing Date: 2014-08-26
Classification: F41A

Abstract:
1. An adjustable firearm gas block having a gas channel, comprising: a threaded first bore intersecting the gas channel; a set screw in the first bore having longitudinal slots, the set screw adapted to constrict the gas channel; a second bore adjacent to the first bore; a detent plunger in the second bore biased to a resting position; and a bearing in a passage between the first bore and the second bore, wherein the detent plunger in the resting position holds the bearing in a longitudinal slot preventing the set screw from turning, and wherein urging the detent plunger away from the resting position allows the bearing to disengage the longitudinal slot, thereby allowing the set screw to turn, adjusting gas pressure in the gas channel caused by firing.