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USGI Mil-Spec BCG Complete Bolt Carrier Groups

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0.35 LBS
On Sale
Now: $79.98
Was: $169.98
Frequently bought together:



  • 100% Mil-Spec Genuine USGI Production
  • 5.56mm / 300 Blockout
  • Bolt: Carpenter 158, MARKED "M" for HPT & MPI Lot tested.
  • Carrier: 8620
  • Full-auto M16/M4 cut
  • Chrome Lined Gas Key & Carrier
  • Phosphate Finish
  • Dry Film Cam Pin
  • Firing Pin: 17-4 Stainless Steel, heat treated, chrome plated 
  • 100% Made in the USA

WARNING This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to You must be 18+ years old to shop and or purchase on our website and 21+ to purchase Ammunition/Firearms. Check local laws before ordering as you certify you are of legal age and satisfy all federal, state, and local legal/regulatory requirements. There are NO returns or exchanges on armor, firearms, ammunition, PPE equipment. Ammo ships UPS ground to the lower 48 states.
We reserve the right to fix any critical errors.

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Additional Information

Bolt Carrier Groups
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1 Review

  • 5
    Battle steel bcg

    I put this in my 300 blackout build so far I haven't had any problems. Seems to be built well with the right components. Time will tell.

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