Ar15 Bolt Carrier Group 5.56x45mm Nitride Mp.
A Bolt-Carrier Group Purpose-Built to Run Reliably in Your AR-15
Whether you're looking to finish off a new AR-15 build or you need a spare bolt-carrier group to have on-hand as a ready replacement (always a good idea), Brownells has you covered with its AR-15 Bolt Carrier Group. This ready-to-roll BCG is built to provide dependable operation in any AR-15 chambered in 5.56 NATO, .223 Remington or 300 Blackout. Each Brownells AR-15 Bolt-Carrier Group features a bolt machined from 9310 tool steel, which is heat-treated and shot-peened. The carrier itself is machined from 8620 hardened steel. Both of these components, as well as every other part in the bolt-carrier group, are finished in a nitride coating. Every bolt is magnetic-particle inspected and features a torqued-and-staked gas key. With each Brownells AR-15 Bolt-Carrier Group, you'll receive the bolt, bolt carrier, gas key, firing pin, cam pin, firing pin retaining pin and an extractor with the necessary spring and rubber insert. This bolt-carrier group will work with any cartridge based on the 5.56 NATO case, and it is not designed for use in full-auto lower receivers.
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- Pros Easy To Install, Good Value, Safe, Tough, Works With Many Guns
- Best Uses Competitive Shooting, Hunting, Self Defense, Tactical, Target Practice
- Describe Yourself Gun Collector
- Was this a gift? No
- Bottom Line Yes, I would recommend this to a friend
Ive tried a few of these now.
So far I've purchased and used 5 of these bcgs. I've had no issues running them in a wide array of different 223/556 ar uppers. They seem of good quality and function well. I've been pleased and will purchase again.
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