The MicroPin Gas Block is designed to fit under most available free float rails and fits all AR Family barrels with a .625" nominal diameter gas block journal.
All bores are machined to very tight Mil-Spec tolerances to ensure precise fits on both the barrel journal and gas tube.
All Black River Tactical products are 100% designed and produced in the USA!
Finished in Mil-spec Black Oxide
Measures 0.900” in length
Weighs only 1.25 oz
Fits barrels with a .625" nominal diameter gas block journal