Toolcraft is one of the premier BCG makers in the industry. Made in USA with premium materials.

Carrier Specifications

Bolt: LEFT HAND, Shot Peened

Material: 8620 Steel Type: M16 Full Auto 

Gas Key Material: 4130 Steel

Grade 8 Gas Key Screws Coating: Black Nitride Bolt

Specifications Bolt Material: 9310 Steel | Shot Peened

Extractor Material: 4140 Steel

Caliber: 223 REM/5.56 NATO/300 Blackout

Mil-Spec O-Ring

Mil-Spec Gas Rings (3)

Cam Pin Material: 4140 Steel

Firing Pin Material: 8740 Steel, Hard Chrome Plated

Other: MPI Inspected

Lifetime Warranty – Toolcraft BCGs carry a lifetime, no questions asked, warranty. Simply put… Should any Toolcraft BCG fail, return it to them for a brand new replacement.