The Aero Precision EPC/AR9 9mm Direct Blowback Bolt Carrier Group with Black Nitride finish (APRH200060C) is the core of your EPC build. Machined from 8620 steel and featuring a nitride finish, fracture-resistant grade 23 titanium pin, and 4140 steel extractor, the EPC bolt assembly is precision machined from the ground up to meet the extreme demands of blowback AR platform firearms.


Bolt Features:

Machined from 8620 Steel
Black Nitride Finish
14.7 oz.