Breek Arms AR-15 .750 Black Nitride Adjustable Gas Block

Breek Arms AR-15 .750 Black Nitride Adjustable Gas Block Breek Arms Low Profile Set Screw style Gas Blocks for the AR-15 or AR-10 (LR308) are machined with high-quality steel and nitrided. Breek Arms' Adjustable gas block is a click-adjustable, giving you positive 1/4 turn clicks. Provided is a long allen wrench so you can adjust it even if your gas block is inside your handguard. The low-profile gas block design allows you to mount it underneath any free-float hand-guard, slim or regular-sized. It is not milled out, so there is a solid, uniform surface that will not collect dust and dirt.