Sons of Liberty Gun Works, Bolt Carrier Group, Scalper, 223 Remington/556NATO
SOLGW
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SOLGW
Sons of Liberty Gun Works, Bolt Carrier Group, Scalper, 223 Remington/556NATO
Sons of Liberty Gun Works, Bolt Carrier Group, Scalper, 223 Remington/556NATO Bolt: Precision machined from Carpenter Technology No. 158 chrome-nickel alloy Heat treated per mil-spec, Shot peened per ASTM B851/SAE AMS2430S, Vibratory tumbled Individual high pressure/proof (HP) test Full Auto test fired at assembly Individual magnetic particle inspection ASTM E1444/E1444M (MP) Markings deep laser engraved (SP=Shot Peened, HP=High Pressure Tested, MP=Magnetic Particle Inspection.) Extractor: Precision machined from 4340 tool steel alloy per SAE AMS6415T/AMS6484D (vs 4140) Heat treated Shot peen per ASTM B851/SAE AMS2430S Extractor Retaining Pin: Precision machined and ground S7 Tool Steel Heat treated per ASTM A681-08
