- The upper group is built on the Mk4 platform
- It is designed to work with any standard AR15 lower group and use Cmmg’s .22LR AR Conversion Mags
- 17″ barrel
- Upper receiver: billet 6061 T6 aluminum
- Cmmg EML15 M-lok hand guard
- Cerakote standard finish
- Lifetime Quality Guarantee
Whether you’re looking to build a AR15 for plinking, training, or small-game hunting, this Cmmg Resolute Mk4 .22LR 17″ Upper Group fits the bill perfectly. The Mk4 .22 LR upper is designed to work with any standard AR15 lower and Cmmg’s .22 Conversion Magazines.
Available in seven different Cerakote finishes, all Cmmg Upper Groups come complete with bolt carrier group and Zeroed accessories including: ZEROED AR15 Polymer Dust Cover, ZEROED 22LR Ambi Charging Handle, ZEROED Muzzle Brake 5.56mm.
