Description
Limit (2) Per Order
100% made in USA to current USGI M4A1 specifications.
The USGI full auto bolt carrier is Manganese Phosphate coated outside and Hard Chrome lined inside. The Mil-Spec gas key is chrome lined and secured with properly staked Grade 8 fasteners to ensure reliable gas system performance.
Carpenter 158 bolt is shot peened, HP tested and MP inspected.
