With subsonic and supersonic loadings available for self-defense, hunting, and target shooting, 300BLK is one of the most adaptable cartridges out there today. No matter how you plan to use your Br4, this .30 Cal carbine packs practicality, like the full length top Picatinny rail and M-LOK handguard, with unmatched style. Includes two CMMG 10rd magazines.
| Muzzle | CMMG Zeroed Muzzle Brake |
| FireArm | yes |
| Weight | 7.80 lbs |
| Barrel Description | Threaded |
| Sights | None |
| Weight Range | 7 lbs to 7.99 lbs |
| Stock Finish Group | Black |
| Receiver Material | Aluminum |
| Twist | 1:7" |
| Barrel Length Range | 16" to 16.99" |
| OAL | 38.10" |
| Stock Description | Magpul SGA |
| Safety | Crossbolt |
| Barrel Length | 16.10" |
| Caliber | 300 Blackout |
| Trigger | Zeroed Single Stage |
| Capacity | 10+1 |
