M16 NICKEL BORON Bolt Carrier Group

The APF Nickel Boron BCG is machined to military specifications. This BCG is full auto compatible.

Features:

• Carrier: SAE 8620 Heat Treated Nickel Boron Plated
• Bolt: Carpenter 158 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 Nickel Boron Plated
• Cam Pin: Swiss machined Heat Treated Nickel Boron Plated