Description
The APF NiB BCG is machined to mil spec standards. – BOLT: – 9310 Material – Shot Peened – Heat Treated – Nickel Boron Plated – CARRIER: – SAE 8620 – Heat Treated – Nickel Boron Plated – Full Auto – EXTRACTOR: – CNC machined – Shot Peened – Heat Treated – Nickel Boron Plated – FIRING PIN: – Swiss machined – Heat Treated – Precision ground – GAS KEY – CNC machined – Heat Treated – Chrome Lined – Torqued and Staked to Carrier Mil Spec. – Nickel Boron Plated – CAM PIN: – Swiss machined – Heat Treated – Nickel Boron Plated
