The MicroPinHD Gas Block is designed to fit under most available free float rails and fits all AR Family barrels with a .750" 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.
This maximizes gas flow and allows top gas system performance.
Pinning of the gas block is a must for professional end users who demand the ultimate reliability from their carbines.
Most low profile gas blocks are designed to be secured with just two small set screws.
Unfortunately, those gas blocks can come loose from the heat and impact of heavy firing schedules and rough handling.
The Black River Tactical MicroPinHD Gas Block is specifically to work with OPTIMUM barrels with the machined gas pin slot.
To install, just secure the assembled barrel and gas block drive in the large stainless steel coil pin for a semi-permanent solid lock up.
All Black River Tactical products are 100% designed and produced in the USA!
Specifications
Precision CNC machined from 4140 Chrome-Moly steel
Through hardened for maximum strength and toughness.
Finished in Mil-spec Black Oxide
Measures 1.000” in length
Weighs only 1.65 oz.
Fits BRT Optimum barrels with a .750" nominal diameter gas block journal and machined pin slot
