BCM GAS BLOCK LOW PROFILE .750

FEATURES-Low profile gas block (steel with set screws)-.750-Black steel-BCM Low Profile Gas Block for AR15 M16 M4 M4A1. Machined of steel phosphate finish for .750 barrels.-Manufactured within very tight Mil-Spec tolerances on all ID's.-Barrel ID honed after finish per USGI TDP.-Made by Bravo Company MFG Inc. with set screw mounting -Set Screws are Steel 10-32 x 3/16 Knurled Cup Point