New, by popular demand, all our AR-15 Toolcraft BCG's will feature Mil-Spec Carpenter No. 158 Bolts.
And, as always, all our Toolcraft carriers are are plated by UCT Coatings in Florida, with the EXO coating. UCT is the originator of EXO coating, a patented, high-performance nickel boron coating.
This BCG is the latest offering from Toolcraft. The carrier is engraved with the "Toolcraft" logo as depicted in the product image, and the nickel boron finish is buffed to an extremely impressive shine.
Bolt: Carpenter No. 158 Alloy Steel, Shot Peened
Extractor: Shot Peened Hardened D2 tool steel
Gas rings (3): Milspec
Coating: Nickel Boron Plated
Heavy Duty M16 design
8620 steel, plated
Gas key: hardened billet 4140 machined, plated
Gas Key Screws,: Grade 8 properly staked (heavy strike), Screws may or may not be plated.
Nickel Boron Plated, High Sheen Buff Polish (UCT Coatings in Florida)
Engraved with the "Toolcraft" logo as depicted in the product image
8620 steel Nickel Boron Plated (UCT EXO Finish)
mil-spec firing pin made from centerless ground 8740 steel, hard chrome coated