SBR, Unsuppressed ZEROED BANSHEE, Mk4, 5.7X28MM, 6.5"
Most personal defense SBRs compromise on something, the ZEROED BANSHEE SBR in 5.7x28mm doesn't.
Chambered in the flat-shooting, soft-recoiling 5.7x28mm and driven by the smooth Radial Delayed Blowback operating system, this SBR is a joy to run.
The included faux suppressor tucks neatly beneath the oversized, dad bod-ish M-LOK handguard, delivering a formidable tactical look — no tax stamp required, and no suppressor restrictions to navigate.
The B5 Systems Bravo Stock rounds out the package with adjustable, mil-spec shouldered stability, and the included SD-style silicone handguard covers snap into the M-LOK slots to keep your hands cool after a long day.
ZEROED Controls: All ZEROED BANSHEEs feature our ZEROED premium controls/parts like ambi charging handle, single-stage drop in trigger, 60/90 ambi safety selector, and pistol grip.
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 | 5.7x28mm |
| Operating System | Radial Delayed Blowback |
| Barrel Length | 6.5 |
| Barrel Twist | 1:09 |
| Barrel Contour | MT |
| Barrel Material | 4140CM, Nitride |
| Muzzle Device | Faux Suppressor Blast Diverter |
| Muzzle Thread | 1/2 x 28 |
| Upper Receiver | Mk4 Billet 6061 T6 Aluminum |
| Lower Receiver | Mk4 Forged 7075 T6 Aluminum |
| Hand Guard | 10" M-LOK (accepts up to 1.5" diameter suppressors) |
| Finish | Cerakote |
| Charging Handle | CMMG ZEROED Ambi |
| Pistol Grip | CMMG ZEROED Pistol Grip |
| Buffer Type | Carbine |
| Receiver Extension | FASTBACK 6-Position |
| Stock / Brace | B5 Systems Bravo Stock |
| Trigger Type | ZEROED Drop-In Single Stage |
| Trigger Guard | CMMG ZEROED Trigger Guard |
| Safety Selector | CMMG ZEROED 60/90 Degree Ambi |
| Magazine | CMMG 32rd |
| Weight | 5.7 lbs |
| Length | 26.1-28.6" |