Wilson Combat 5.56 NATO AR-15 Bolt Carrier Group - Black Nitride

This 5.56 NATO AR-15 Full Auto Bolt Carrier Assembly is another precision quality part from Wilson Combat. The bolt is made from 9310 tool steel to prevent wear and tear while still remaining flexible enough to prevent cracking. Featuring a salt bath nitride finish on the outside and inside, this bolt carrier group will work in any 5.56 rifle, but it’s designed for full-auto, suppressed, or short barrel rifles.

Features:

• 5.56 NATO
• Mil-Spec
• 9310 Tool steel bolt
• 8620 Steel Carrier
• 4140 Extractor
• Properly staked grade 8 gas key screws
• Salt bath nitride
• High Pressure Tested