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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

Quick review as I never post them...

1) ordered item and immediately got a paid receipt email. Got a shipping notice confirmed with tracking within an hour.

2) received item 2 days later

3) Toolcraft Nitride BCG came properly staked and greased. Small blem on the nitride finish but I can live with it. Performs flawlessly and wipes off powder with my fingers.

100% no issues and would highly recommend this dealer based on communications/shipping/price/product quality!

If you are thinking about it, just do it!


I have bought several of these. Super high quality and have absolutely no problems. Work perfectly in several different builds. Will use more. Tom's has great price and fast shipping.


Good price and good quality, will order more no hesitation.


Works great and cleans up much better than a phosphated BCG. I've put about 600 rounds through it so far with zero issues. Great quality product at a great price. Excellent machining and no burrs or rough spots. Toolcraft is the way to go and I will definitely be using them for future builds.


Best BCG on the market.


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Toolcraft BCG AR15 Bolt Carrier Group Black Nitride

  • Brand: Toolcraft
  • Product Code: TOOLCRAFTBCGAR15BN
  • Availability: Out Of Stock
  • $99.95
  • Free Shipping

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