Category: Black Rifle Accessories » AR-15 Upper Parts
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BCM® Low Profile Gas Block for AR15, M16, M4, M4A1. Machined of steel, phosphate finish, for .625 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
Includes set screws (Set Screws are Steel 10-32 x 3/16 Knurled Cup Point)
Item Nr.: 470-LGB-625