Black River Tactical M4A1 Bolt Carrier Group - Carpenter 158 - HPT/MPI Auto
SKU
BRT00286
$159.00
Out of stock
Black River Tactical M4A1 Bolt Carrier Group - Carpenter 158 - HPT/MPI Auto
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.
| Dangerous Goods | Yes |
|---|---|
| Shipping Restriction | ITAR/Export Restricted |
| Bolt Carrier Cut | Full Auto (FA) |
| Finish | Manganese Phosphate Parkerization |
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