The CMMG Barrel Sub-Assm 16.1inch MT 4140CM SBN 5.56mm is a rifle barrel for AR-15.
CMMG's Barrel Sub-Assembly is ideal for building your custom AR-15 upper group. It comes with properly installed M4 barrel extension.
Specifications
- Brand: CMMG
- Fits: AR-15
- Finish: Nitride
- Length: 16.10 in
- Manufacturer Part #: 55DC70A
- UPC: 815835016153