Rubber City Armory Blacknitride+ 458 Socom/450 Bushmaster Bolt Carrier Group - 458-001

Known for manufacturing some of the best BCG’s that you will find in some of the BIG NAME manufacturers’ OEM guns. Rubber City Armory M16 Bolt Carrier Group features a H&M’s Blacknitride+ treatment. Carrier is made from 8620 steel, bolt 9310 steel, billet staked gas key and tool steel extractor/cam pin. Compatible with all AR15 platform systems.