Tight specs at a great value.
BCM Low Profile Gas Blocks are made of machined steel, and given a phosphate finish. When BCM makes their gas blocks, they are manufactured within very tight Mil-Spec tolerances on all ID’s. The barrel ID is then honed after finish per USGI TDP to ensure proper fitment.
Made by Bravo Company MFG, Inc. with set screw mounting.
Set Screws are Steel 10-32 x 3/16 Knurled Cup Point