C158 Bolt and Phosphate Coating: Battle-Tested Durability and Superior Performance
Featuring a phosphate exterior for rugged wear resistance and a chrome-lined interior for smooth, consistent cycling, this BCG design is battle proven. Made to military specifications, this bolt carrier is made exactly like those currently used in U.S. military M4 rifles. The phosphate coating and M16 BCG are exactly what you need in a duty rifle.
Carpenter 158 (C158) Bolt
Shot-peened and magnetic particle inspected (MPI) for superior strength, ensuring flawless function and long-term reliability under heavy use.
Rugged, Battle-Tested Durability
The phosphate finish offers exceptional wear resistance, while the chrome-lined interior ensures smooth, reliable cycling.
M16 Full-Auto Rated Carrier
Built with an M16-profile carrier for increased mass, delivering enhanced durability and smoother operation in semi-automatic rifles and gives a peace of mind in functionality.
STNGR sources these BCGs from one of the largest suppliers of bolts and carriers in the firearms industry. When you buy a BCG from us, you're getting a high-quality product that's made in the USA, that's trusted by dozens of brands and manufacturers, and we back every one with our STNGR lifetime warranty.
Specifications
Caliber: .223/5.56, .300 Blackout, .350 Legend
Finish type: Phosphate
Carrier Type: M16/Full Auto Capable (Best for AR-15)
