BUY TOOLCRAFT 5.56 PHOSPHATE MPI FULL-AUTO BOLT CARRIER GROUP – NO LOGO

The Carpenter 158 steel used in this Toolcraft Bolt is Mil-spec, and it has been shot-peened and mag particle-inspected. The gas key is staked in accordance with mil-spec, has a phosphate coating, and is chrome lined. The full-auto bolt carrier is chrome lined and phosphate treated. Produced in the USA.

DETAILS

Mil-Spec Carpenter No. 158® Steel Bolt

Shot Peened; Mag Particle Inspected

Chrome Lined Full-Auto Carrier

Chrome Lined Gas Key; Hardened to USGI Specifications

Secured with Grade 8 Hardened Fasteners

Staked Per Mil-Spec