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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

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

08/27/2019

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.

08/27/2019

Best BCG on the market.

08/27/2019

Great BCG, better than the aero my brother-in-law bought!!!

01/17/2019

Best BCG for the price on the market. Best price for this BCG I've found. Free and fast shipping.

01/16/2019

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Toolcraft BCG AR15 Bolt Carrier Group Black Nitride

  • Brand: Toolcraft
  • Product Code: TOOLCRAFTBCGAR15BN
  • Availability: In Stock
  • $89.95
  • $79.95
  • Free Shipping

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