This Rosco 10.5” 300 Blackout barrel was designed for SBR and Pistol use in conjunction with suppressors. The 10.5” 300 Blackout Rosco barrel was made to be a direct replacement for any MK 18 platforms that are currently in 5.56 NATO. The 10.5” barrel is also perfect for carbines which require a slightly longer rail in order to run PEQ-15’s, D-BAL (series), or any laser aiming devices comfortably. ALL NFA RULES APPLY!
| Barrel Length | 10.5″ | |
| Barrel Weight | 21.4 oz | |
| Barrel Material | 4150 CMV | |
| Barrel Caliber | 300 BLK | |
| Barrel Profile |
Heavy |
|
| Twist |
1/7 |
|
|
Barrel Thread |
5/8 x 24 | |
|
Gas Block Size |
.750 | |
|
Gas System Length |
Pistol | |
| Barrel Crown |
11 Degree |
|
| Barrel Finish |
Nitride |
|
| Barrel Extension Finish |
Nitride |
Additional information
| Weight | 22 oz |
|---|---|
| Dimensions | 12 × 2.3 × 2.2 in |
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