Suppressed Upper Group, ZEROED BANSHEE, Mk4, 300BLK, 6.5"
300BLK was practically designed to be suppressed, and the ZEROED BANSHEE Mk4 Suppressed Upper Group leans into that heritage completely.
Running on Direct Impingement, the 6.5" barrel pairs naturally with the included ZEROED 30 suppressor, which tucks neatly inside the oversized, dad bod-ish 11" M-LOK handguard.
Compatible with standard Mk4/AR15 lower receivers, this upper group is the easiest way to turn any Mk4 lower into a purpose-built suppressed .300 BLK platform.
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 | ZEROED 30 |
| 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 | 4.3 lbs |
| Length | 19.5" |