UPPER GROUP, BANSHEE, 5.7X28MM, 8"

Designed to provide superior ballistics and less felt recoil than most pistol caliber personal defense weapons, 5.7x28mm has quickly become one of the most popular chamberings in the PDW space. With the 8" BANSHEE(TM) upper group you can build the PDW AR15 of your dreams. Compatible with either CMMGMk57(TM) lowers or a standard AR15/Mk4 lower (when used with CMMG 5.7 AR Conversion Mags). Available in different Cerakote finishes, all CMMG Upper Groups come complete with bolt carrier group and ZEROED(TM) accessories including:ZEROED AR15 Polymer Dust CoverZEROED AR15 Ambi Charging HandleZEROED Linear Compensator 5.56mmWith the wide range in ammunition available, and the option for suppressed operation, the available Action Tuning Kit will allow you to tune your system even more for added flexibility and smoother operation.Radial Delayed Blowback(TM) Operating SystemOriginally developed for the .45 ACP MkG platform, CMMG has adapted our Radial Delayed Blowback system across our pistol caliber lineup to create pistols and rifles with a softer recoil impulse and reduced bolt weight compared to traditional straight blowback systems. Check out our CMMG Resources article & video to learn more about what sets Radial Delayed Blowback apart.Lifetime 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.