Toolcraft AR15 6.5 Grendel Type II Bolt Carrier Group – Nickel Boron

(6 customer reviews)

$119.99 $114.99

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SKU: TOOLCRAFT-6.5-NB-BCG Categories: ,


Toolcraft BCG Nickel Boron 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: Nickel Boron

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

Cam Pin:
8620 steel
Finish: Nickel Boron

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

Additional information

Weight .85 lbs
Dimensions 8 × 4 × 4 in

6 reviews for Toolcraft AR15 6.5 Grendel Type II Bolt Carrier Group – Nickel Boron

  1. Bradley A. (verified owner)


  2. Anonymous (verified owner)

    Nice BCG at a great price

  3. Timothy Barnett (verified owner)

    King did a good job with their assistance.

  4. joshua flores (verified owner)

    All I expected and best price I could find.

  5. Phil J. (verified owner)


  6. Josh Warren (verified owner)


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