MSRP:
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Description
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: Carpenter 158 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
Platform: |
AR-15 |
Finish: |
Nickel Boron |
Caliber: |
5.56 |
Caliber: |
.223 |
Caliber: |
300 BO |
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