Aero Precision EPC-9 9mm Direct Blowback Bolt Carrier Group - V2 - Nitride - APRH200083C

Aero Precision EPC-9 9mm Direct Blowback Bolt Carrier Group - V2 - Nitride. The EPC bolt is the core of any EPC build. Machined from 8620 steel and featuring a black nitride finish, fracture-resistant grade 23 titanium pin, and 4140 steel extractor and bolt guides, the EPC bolt assembly is precision machined from the ground up to meet the extreme demands of blowback AR platform firearms. This bolt also has a heavy duty extractor coil pin.