Upper Group, Unsuppressed ZEROED BANSHEE, Mk4, 300BLK, 6.5"
300BLK earned its reputation in platforms just like this — short, compact, and purpose-built.
The ZEROED BANSHEE Mk4 Upper Group gives you the Direct Impingement reliability of the Mk4 platform with a ZEROED Faux Suppressor that tucks inside the oversized, dad bod-ish 11" M-LOK handguard.
The result is a suppressor-profile build that looks the part without the NFA tax stamp or suppressor regulations.
Drop it onto any standard Mk4/AR15 lower receiver and you're ready to run.
Lifetime Quality Guarantee: We aim to please, that's why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects.
Specifications
| Platform | Mk4 |
| Caliber | .300 BLK |
| Operating System | Direct Impingement |
| Barrel Length | 6.5 |
| Barrel Twist | 1:07 |
| Barrel Contour | MT |
| Barrel Material | 4140CM, Nitride |
| Muzzle Device | Faux Suppressor Blast Diverter |
| Muzzle Thread | 5/8 x 24 |
| Gas Port Location | Pistol |
| Gas Block | .750" Adjustable |
| Upper Receiver | Mk4 Billet 6061 T6 Aluminum |
| Hand Guard | 11" M-LOK (accepts up to 1.5" diameter suppressors) |
| Finish | Cerakote |
| Charging Handle | CMMG ZEROED Ambi |
| Weight | 3.9 lbs |
| Length | 18.6" |