The CMMG® Mk3 BANSHEE™ in 8.6 Blackout is a powerful and compact AR pistol designed to excel in various shooting scenarios, especially for those who appreciate the unique attributes of the 8.6 BLK cartridge. Built on CMMG’s proven Mk3 platform, the BANSHEE brings AR-15-like modularity to larger calibers, including .308 Win, 6.5 Creedmoor and now 8.6 Blackout. The Mk3’s foundation is the LR-308/DPMS Gen 1 high-pattern design, delivering reliability and compatibility you can trust.
The 12.5″ barrel with a 1:3 twist rate is constructed from 4140CM steel with a Nitride finish, ensuring both precision and longevity. This Banshee model operates with a direct impingement system, providing consistent and reliable performance. The CMMG Zeroed Linear Compensator helps manage recoil, allowing for quick and controlled follow-up shots. The rifle features a billet 7075 T6 aluminum upper and lower receiver, paired with a CMMG EML11 M-LOK handguard for added versatility in accessory attachment.
Full-length M-LOK slots on the sides and bottom, plus additional M-LOK between the top Picatinny rail sections, ensure you have all the space you need for lights, optics, bipods and more, making the 8.6 Blackout BANSHEE equally at home in the field, on the range, or in tactical scenarios. The CMMG RipBrace provides stability and comfort, making it a well-rounded option for tactical scenarios. The ZEROED Drop-In Single Stage trigger ensures a crisp and reliable trigger pull, making this pistol ready for any challenge.






