$179.00

Description   Sons of Liberty Gun Works Bolt Carrier Group HPT/MPI Bolt: Precision machined from Carpenter Technology No. 158 alloy, Heat treated per mil-spec, Shot peened per ASTM B851/SAE AMS2430S, Vibratory tumbled Individual high pressure/proof (HP) Full Auto test fired as an assembly Individual magnetic particle inspection ASTM E1444/E1444M (MP) Markings deep laser engraved (SP=Shot Peened, … Continue reading SOLGW 5.56 Bolt Carrier Group 158 Carpenter SP/HPT/MPI | Sons Of Liberty Gun Works BCG

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