Toolcraft Phosphate 158 Bolt Carrier Group - MPI Bolt - M16 CarrierThis Toolcraft MPI inspected 158 Phosphate 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!
All of our Toolcraft BCG's come assembled from TC. We do nothing to them other than inspect them and put them on the shelf for sale! Be wary of other companies that purchase just carriers from Toolcraft and then assemble BCG's with random bolts! Even worse, some companies get their carriers raw and use inferior plating or coating
- Mil-spec carpenter No. 158® steel (bolt)
- Bolt is shot Peened and MPI
- 8620 Tool Steel (Carrier)
- Chrome Lined Carrier & Gas key
- 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