Upper Group, BANSHEE, Mk3, 8.6 BLK, 12.5"

Long barrel? Who needs that? Thanks to the quick 1:3 twist rate 8.6 BLK does with less barrel length what other calibers could only dream of. Great for someone wanting to swap uppers to shoot 8.6 BLK or for those wanting to start a new build. The CMMGMk3 platform is based on the popular DPMS Gen 1 high-pattern LR308 design. Check out our CMMG Resources article to learn more about the Mk3 platform. Available in different Cerakote finishes, all CMMGUpper Groups come complete with bolt carrier group and ZEROED(TM) accessories including:ZEROED Polymer Dust Cover .308ZEROED AR10/Mk3 Ambi Charging HandleZEROED Linear Compensator 8.6 BLKLifetime Quality GuaranteeWe aim to please, that's why every CMMG product is backed by our Lifetime Quality Guarantee against material and workmanship defects. Learn More.