AR-15 223/5.56/300 Blk/350 Legend Nitride Full Auto Bolt Carrier Group

In stock

Why Buy From Us?


Don't see the exact configuration you want? No problem, just let us know. Most of the time we can customize with the parts we have just to your liking.


All our uppers have a Lifetime Warranty to the original purchaser. Some conditions apply - click here for details.

Customer Service

We believe in customer service before and after the sale. We never take days or weeks to respond. Most of the time if you email or leave a message, we usually respond the same day or next business day.

Turnaround Time

Most of our uppers are built to order. Our most important goal is to get your order to you as quickly as possible without sacrificing quality. Please check the live status update on the banner above and/or on our homepage for current processing times.


We always specify the manufacturer of the major components therefore you know what you are getting. We only use quality components from well-known manufacturers.

-We get our Bolt Carrier Groups from a variety of reputable manufacturers e.g. PSA, Toolcraft, Azimuth, DRG Manufacturing, Microbest, Unbranded AR etc. Our stock varies weekly. Sorry but we cannot accomodate any request for a specific brand. 

-Caliber: 223 REM /5.56 NATO / 300 Blackout / 350 Legend

-Finish: Nitride

-Profile: Full Auto M16

-Bolt Material: 9310 Steel or C-158

-Carrier Material: 8620 Steel

-Carriers are assembled per MIL-SPEC using permatex NO.3D aviation and Grade 8 screws to attach the gas key, followed by proper staking. Crane O-ring installed on extractor spring to ensure proper ejection. Bolt is heat treated 9310 tool steel and shot peened. 

-Made in the USA

More Information
Write Your Own Review
You're reviewing:AR-15 223/5.56/300 Blk/350 Legend Nitride Full Auto Bolt Carrier Group
Your Rating
We found other products you might like!