| Platform | Mk3 |
| Caliber | 8.6 BLK |
| Operating System | Direct Impingement |
| Barrel Length | 12.5 |
| Barrel Twist | 1:3 |
| Barrel Contour | MT |
| Barrel Material | 4140CM, Nitride Finish |
| Barrel Twist | 1:3 |
| Muzzle Device | CMMG ZEROED Linear Compensator |
| Muzzle Thread | 5/8 x 24 |
| Gas Port Location | Pistol |
| Gas Block | Adjustable 0.750" |
| Upper Receiver | Billet 7075 T6 Aluminum |
| Lower Receiver | Mk3 Billet 7075 T6 Aluminum |
| Hand Guard | CMMG EML11 M-LOK |
| Finish | Cerakote |
| Charging Handle | CMMG ZEROED Ambi |
| Pistol Grip | CMMG ZEROED Pistol Grip |
| Buffer Type | Carbine, Mk3 |
| Receiver Extension | CMMG 6 Position Fastback w/Ambi Sling Plate |
| Stock / Brace | CMMG RipStock |
| Trigger Type | ZEROED Drop-In Single Stage |
| Trigger Guard | Integrated |
| Safety Selector | CMMG ZEROED 60/90 Degree |
| Magazine | Magpul 20rd PMAG |
| Weight | 7.4 lbs |
| Length | 29.9" |
Please Allow 15-30 Days To Process Your Order.
State/local restrictions may apply in CA, CO, CT, DE, DC, HI, IL, MD, MA, MI, NJ, NY, or WA. Customers must review our Firearms Shipping Policy prior to ordering.
Firearms with attached pistol brace. Please confirm your FFL is accepting transfers for pistol brace equipped firearms prior to ordering.
SBR, BANSHEE, Mk3, 8.6 BLK, 12.5"
Big enough to balance performance yet small enough to not be cumbersome. This 12.5" BANSHEE SBR in 8.6 BLK hits the sweet spot, perfect for hunting with supersonic loads or for home defense use with a suppressor and subsonic ammo. The Mk3 (AR-10) size platform, is based on the LR-308/DPMS Gen 1 high-pattern design. Check out our CMMG Resources article to learn more about the Mk3 platform.
Available in a variety of cerakote finish options, the BANSHEE series represents the most innovative AR SBRs available today. From the quick deploying RIPSTOCK®, to the stylized receivers and EML™ handguards, every BANSHEE is tailor-made to be the personal defense weapon you can always depend on. With full length M-LOK® slots on both sides and the bottom of the handguard as well as M-LOK between the top picatinny rail sections, you’ll always have enough space for those must have accessories.
**All NFA rules apply** All BANSHEE NFA SBRs (short barrel rifles) require additional ATF paperwork & processing time. See linked CMMG Resource article for more information.
Mk3 ZEROED parts and accessories – Quality comes standard
The AR platform is well known for its capability for customization but picking the right parts doesn’t have to be a nightmare of homework. Everything from the RIPSTOCK to the full kit of ZEROED parts and accessories are made here in the USA with quality and attention to detail that is second to none and each BANSHEE comes equipped with a slew of ZEROED parts standard, including:
ZEROED .308 Ambi Charging Handle
ZEROED Extended Mag Release Button
ZEROED Polymer Dust Cover .308
ZEROED Linear Compensator 8.6 BLK
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. Learn More
~Firearms shipping to states with magazine capacity restrictions will only ship with 10rd magazines in place of standard capacity magazines. CMMG does not address any other state compliancy requirements for further restricted states.