Description
Rosco Manufacturing Bloodline is an 11.5 in M4 profile 5.56 NATO barrel with a 1:7 in twist rate. It is made from 4150 CMV steel and finished in black nitride. This barrel uses a carbine-length gas system and a threaded muzzle with 1/2×28 thread pitch, and it is intended for AR15 builds.
Key details
- M4 profile barrel
- 5.56 NATO chambering
- 1:7 in twist rate
- Carbine-length gas system
- 1/2×28 thread pitch
- 4150 CMV steel, black nitride finish
Specifications
| Barrel Length | 11.5 in |
|---|---|
| Caliber | .223 REM/5.56 NATO |
| Rate of Twist | 1:7 in |
| Thread Pitch | 1/2×28 |
| Material | 4150 CMV |
| Finish | Black nitride |




