phone: 888-310-0284

AR-15 Bolt Carrier Group (Full Auto Profile) - .223 / 5.56mm NATO / .300 AAC Blackout

Usually ships the same day or the next business day!

If you're looking for the "guts" to go inside the upper receiver you just bought or built, we have a super affordable yet robust and well-performing option for you.  This BCG will accept .223, 5.56mm NATO, and .300 AAC blackout rounds.  See below for the ins and outs.


  • Bolt: Heat-treated 9310 Steel
  • Carrier: Mil-spec 8620 Steel
  • Profile: M16/Full-Auto
  • Coating: Black Nitride
  • Gas Key: Hardened to USGI specifications
  • Fasteners: Key staked w/ G8 Fasteners
  • Extractor: S7 Tool Steel extractor and extractor spring
  • Please Note: Bolt Carrier Group will be packaged dry, lubricate BCG before use.

WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to:

Shipping Restrictions

Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or "assault weapons" (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily. only ships within the United States. Federal legislation dictates we cannot ship our products internationally.

.223 Wylde
.300 AAC Blackout

We are a national retailer of individual components and not all products depicted on this website are legal in every state. Shipping of various products found on this website are prohibited to some states (such as California, Connecticut, District of Columbia, Hawaii, New Jersey, New York, Rhode Island, and Washington). The information, pictures, text or products presented on this website are not a representation by us, and should not be understood by you, that any product or completed firearm is legal to assemble or own in your state of residence. We encourage each and every builder to perform their own research about the state and federal laws that apply to them. It is your responsibility to understand the law and we encourage you to consult with an attorney or your local ATF representative.