Description
Toolcraft BCG Nickel Boron AR308 Auto Bolt Carrier Group 9310 Alloy Steel 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: 9310 Alloy Steel, Shot Peened
MPI Inspected
Extractor: Shot Peened Hardened D2 tool steel
Mil-Spec O-Ring
Milspec Gas rings (3)
Nickel Boron
Bolt Carrier:
Heavy Duty full auto design
Armalite serrations (Works with Aero Precision receivers)
8620 steel
​Gas Key: hardened billet 4140 machined, Chrome lined gas key
Gas Key Screws,: Grade 8 properly staked (heavy strike)
Nickel Boron
Cam Pin:
8620 steel
Nickel Boron
Firing Pin:
mil-spec firing pin made from centerless ground 8740 steel, hard chrome coated
Additional Information
Platform: |
AR-308 |
Finish: |
Nickel Boron |
Caliber: |
.308 |
Caliber: |
7.62x51 |
Caliber: |
6.5 Creedmoor |
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