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Description
Toolcraft uses the QPQ (Quench Polish Quench) process to augment the standard Nu-Tride process with the advanced Black Nitriding process. It enhances corrosion resistance due to the expanded secondary polishing procedure, followed by re-oxidation to produce a lustrous black finish as well as case hardening the steel.
Features:
.308 Winchester 7.62 By 51 NATO
Full Auto Capable
9310 MPI and HPT Tested Bolt
Case Hardened 8620 Carrier
4130 Gas Key
Grade 8 Hardware With Proper Staking
Gas Key Sealed With Permatex No.3
8740 Hard Chrome Firing Pin
Black Nitride Treated For Reduced Friction And Increased Longevity
Proudly Made In The U.S.A
Unconditional Lifetime Warranty
SKU: 2790
UPC: 516445275
