Product Features & Specifications
CMMG 55DC70A Barrel Sub-Assembly MT 5.56 NATO 16.1 AR-15 4140 Chrome Moly Steel Black Nitride
CMMG's Barrel Sub-Assembly is ideal for building your custom AR-15 upper group. It comes with properly installed M4 barrel extension.
| Brand | CMMG |
| Model | Barrel Sub-Assembly |
| Caliber | 5.56x45mm NATO |
| Firearm Fit | AR-15 |
| Length Range | 16"-20" |
| Color | Black |
| Material | 4140 Chromoly Steel |
| Sights | None |
| Finish | Nitride |
| Barrel Type | Midlength |
| Twist | 1:7" |
| Length | 16.10" |
| Thread Pattern | 1 / 2"-28 |
| Barrel Features | Threaded |
| SKU | 3187 |
| MPN | 55DC70A |
| UPC | 815835016153 |
