USGI Mil-Spec BCG Complete Bolt Carrier Group

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0.35 LBS
On Sale
Now: $89.98
Was: $129.98
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

This USGI Mil-Spec BCG Complete Bolt Carrier Group is perfect for your AR-15. Proudly made in the USA, this product is guaranteed to meet all Mil-Spec standards. The bolt is made from Carpenter 158 steel and has been marked "M" for high-pressure and magnetic particle inspected. The carrier is constructed from 8620 steel and features a full-auto M16/M4 cut. With a chrome-lined gas key and carrier, phosphate finish, and dry film cam pin, this bolt carrier group is built to last. The firing pin is made from 17-4 stainless steel, heat treated, and chrome plated. Get your hands on this high-quality bolt carrier group today.

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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5 Reviews

  • 2
    Never received it

    I never received the item. I've sent them a email and sent the paper they wanted me to sign and was told that they was going to send me the item and I haven't heard anything. I haven't received nothing either. Really disappointed in this

  • 3
    Bolt Quality

    Carrier is in good condition, solid build, phosphate finish is well made, chrome line of bore is sollid. Staking is well made. but unfortunately bolt is made not well, Bolt has manufacturing defects, Milling Marks and deep Scratches. Time will show this Milling Marks and deep Scratches will be reason for botl fail or not. Price is Great but Bolt Quality is not.

  • 5
    Fit and finish

    Fits and cycles great. Definitely a good deal.

  • 5

    Purchasing was smooth and the BCG worked flawlessly, great purchase thanks Botach

  • 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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