| Caliber | .300 BLK |
| Barrel Length | 16.1 |
| Barrel Twist | 1:7 |
| Barrel Contour | Multi Role |
| Barrel Material | 4140CM |
| Barrel Twist | 1:7 |
| Muzzle Thread | 5/8 X 24 |
| Gas Port Location | Carbine |
| Gas Block | 0.750" |
| Finish | SBN |
| Weight | 2 lbs |
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Barrel Sub-Assm, 16.1" MR 4140CM SBN, 300 BLK
Perfect for building your custom AR15 upper group. Comes with a properly installed M4 barrel extension. All barrel sub-assemblies are properly headspaced.