Diamondback Firearms 5.56 AR-15 Bolt Carrier Group - Nitride

Manufactured by Diamondback Firearms
Manufactured by Diamondback Firearms
1 Review
$79.99 $129.99

In Stock

Standard orders will ship out 2 business days if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



Diamondback Firearms 5.56 Bolt Carrier Group is coated in a black nitride finish to prevent carbon build up and ensure that your rifle keeps functioning. You can be confident that every part of this bolt carrier group is machined, installed, and tested to a high standard of quality. 

  • 5.56 NATO
  • M16/AR-15 Cut
  • Mil-Spec Staked Hex Screws
  • High Pressure Tested to over 90,000 PSI
  • 16.05 oz
  • Black Nitride Finish

The Diamondback Firearms 5.56 NATO BCG is a great addition to your next build AR-15 or as a back up for your existing rifles. 
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Bolt FinishBlack Nitride
Bolt MaterialSteel
BrandDiamondback Firearms
Caliber Gauge5.56 NATO
Carrier FinishSalt Bath Nitride
Carrier StyleAR-15 Bolt Carrier
High Pressure TestedHigh Pressure Tested
Magnetic Particle InspectMagnetic Particle Inspected
Weight16.05 oz

Ratings & Reviews

1 review

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Not bad!


Tried to look for imperfections. Didn’t find any flaws. Nitride finish is smooth. Stakes look identical to my other pricier bolt carriers. It is not the advertised 16 ounces. No way! Same weight as my other bolt carriers as I juggle each one of them. Should be 11 something ounces. Would I buy this again? Most definitely.