Toolcraft Black Nitride Bolt Carrier Group - MPI Bolt - M16 Carrier
This Toolcraft Black Nitride BCG comes with a lifetime warranty and is perfect for any AR15, M4 or M16 Build. Toolcraft carriers and bolts are build to military specifications, also known as "Mil-Spec" and they are known throughout the industry as some of the best.
Toolcraft Bolt Carrier Groups come with a lifetime warranty!
Enhanced 9310 Steel (Bolt)
8620 Tool Steel (Carrier)
Mil-Spec Extractor Spring, black extractor insert, Viton O-Ring
Tool Steel Extractor
Shrouded Firing Pin
Mil-Spec Gas Key (4130 Steel) attached with Grade 8 hardware and Properly staked
Caliber: .223 / 5.56 / 300 Blackout
Bolt is shot Peened and MPI