BCM Low Profile Gas Block with Set Screws, .625″

BCM Low Profile Gas Block with Set Screws, .625″ The Bravo Company Manufacturing Low Profile Gas Block is manufactured within very tight MIL-SPEC tolerances. Machined from steel then phosphate finished, the internal diameter is then honed, ensuring a correct fit to your barrel. Secured using the two provided steel 10-32 x 3/16 knurled cup point set screws.