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Toolcraft BCG Black Nitride AR15 / M16 Auto Bolt Carrier Group 9310 MPI Tested

All manufacturing and coating is done by Toolcraft.

100% Made in USA and includes Lifetime Warranty from Toolcraft. If ever a problem, simply call Toolcraft and they will take excellent care of you with their no questions asked Lifetime Warranty.

Bolt Assembly:
​Bolt: AISI 9310 alloy steel
MPI Inspected
Extractor: Shot Peened Hardened D2 tool steel 
O-Ring: Mil-Spec 
Gas rings (3): Mil-Spec 
Finish: Black Nitride

Bolt Carrier:
8620 steel
Heavy Duty M16 design
Grade 8 Gas Key Screws, Staked
Gas Key Material: 4140
Finish: Black Nitride

Cam Pin:
8620 steel
Finish: Black Nitride

Firing Pin:
mil-spec firing pin made from centerless ground 8740 steel, hard chrome coated

I'm impressed. Toolcraft's finishing is much better than the PSA BCG's I own. There are no tooling marks and the nitride is a beautiful dark black. Quality and workmanship shows. It doesn't have the dull phosphate look if that's what you prefer, but it's functionally superior. 9310 bolt steel takes advantage of the latest technology. Their warranty is a bonus for sure. Tom's shipping was fast too.


I'm doing an AR build using a PSA lower and PSA M4 upper and I bought this Toolcraft BCG from Toms. You can't beat the price and a lifetime no questions asked warranty from Toolcraft, what more can you ask for!


These toolcraft bolt carriers are some of the best you can buy when it comes to the standard black nitride. Do not hesitate to buy this from toms. Fast shipping and excellent customer service.


Received my two Toolcraft BCGs within a couple days of ordering. These are slick, well made bolt carrier groups. Better than the PSA premiums by far.


Toolcraft makes excellent quality BCGs. I bought two and they work flawlessly. Fast shipping also.


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Toolcraft BCG AR15 Bolt Carrier Group Black Nitride

  • Brand: Toolcraft
  • Product Code: TOOLCRAFTBCGAR15BN
  • Availability: In Stock
  • $79.95
  • Free Shipping

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