Description
- 5.7x28mm chambering for superior ballistics and reduced recoil
- 8-inch BANSHEE upper group
- Compatible with CMMG Mk57 lowers or standard AR15/Mk4 lowers with CMMG 5.7 AR Conversion Mags
- Available in multiple Cerakote finishes
- Includes bolt carrier group
- ZEROED AR15 Polymer Dust Cover included
- ZEROED AR15 Ambi Charging Handle included
- ZEROED Linear Compensator 5.56mm included
- Radial Delayed Blowback Operating System for softer recoil and lighter bolt weight
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 upper group you can build the PDW AR15 of your dreams. Compatible with either CMMG Mk57 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 accessories including:
- ZEROED AR15 Polymer Dust Cover
- ZEROED AR15 Ambi Charging Handle
- ZEROED Linear Compensator 5.56mm
Radial Delayed Blowback Operating System
Originally 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.
Warranty Information
- Platform: Mk4, Mk57
- Caliber: 5.7x28mm
- Operating System: Radial Delayed Blowback
- Barrel Length: 8
- Barrel Twist: 1:9
- Barrel Contour: MT
- Barrel Material: 4140CM, SBN
- Muzzle Device: CMMG ZEROED Linear Compensator
- Muzzle Thread: 1/2 x 28
- Gas Port Location: N/A
- Gas Block: N/A
- Upper Receiver: Billet 6061 T6 Aluminum
- Hand Guard: CMMG EML7 M-LOK
- Finish: Cerakote Standard
- Charging Handle: CMMG ZEROED Ambi
- Weight: 2.9 lbs
- Length: 16.5"
