Rosco Manufacturing Bloodline 16" 5.56mm M4 profile barrel with a 1:7 twist rate and mid gas system. The outside of the barrel has a black salt bath nitride finish and the inside of the barrel also has a salt bath nitride finish.
| Caliber |
5.56 NATO |
| Barrel Length |
16" |
| Twist Rate |
1:7 |
| Gas System |
Mid Length |
| Barrel Profile |
M4 |
| Inside Finish |
Black Salt Bath Nitride |
| Outside Finish |
Black Salt Bath Nitride |
| Material |
4150 Steel |
| Barrel Weight |
28.97oz |
| Diameter At Gas Port |
.750" |
| Muzzle Thread |
1/2x28 TPI (Threads Per Inch) |
