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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

The Toolcraft BCG that I ordered, was exactly what I wanted. Great warranty. Quick shipping. Will be purchasing more for spares.

10/24/2018

Quick delivery. Flawless finish. Perfect function thus far with all ammunition tested which included the least expensive steel cased brands. Great price!

10/07/2018

Great BCG

09/14/2018

High quality

08/06/2018

great bcg.toolcrafts finishing is excellent.no tooling marks nitride finish beautiful dark black.Can't beat price,lifetime warranty from toolcraft.I'll be buying from Toms again.Iam a return customer.

07/31/2018

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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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