Caliber/Gauge
22 LR
Barrel Length
17"
Finish
Black
Whether you're looking to build a AR15 for plinking, training, or small-game hunting, this .22 LR RESOLUTE Upper Group fits the bill perfectly. The Mk4 .22 LR upper is designed to work with any standard AR15 lower and our .22 Conversion Magazines. Available in six 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
Platform: Mk4
Caliber: .22 LR
Operating System: Traditional Blowback
Barrel Length: 17
Barrel Twist: 1:16
Barrel Contour: MT
Barrel Material: 4140CM, SBN
Muzzle Device: CMMG ZEROED Muzzle Brake
Muzzle Thread: 1/2 x 28
Upper Receiver: Billet 6061 T6 Aluminum
Hand Guard: CMMG EML15 M-LOK
Finish: Cerakote Standard
Charging Handle: CMMG ZEROED Ambi
Weight: 4.0 lbs
Length: 25"
ZEROED AR15 Polymer Dust Cover
ZEROED 22LR Ambi Charging Handle
ZEROED Muzzle Brake 5.56mm
Platform: Mk4
Caliber: .22 LR
Operating System: Traditional Blowback
Barrel Length: 17
Barrel Twist: 1:16
Barrel Contour: MT
Barrel Material: 4140CM, SBN
Muzzle Device: CMMG ZEROED Muzzle Brake
Muzzle Thread: 1/2 x 28
Upper Receiver: Billet 6061 T6 Aluminum
Hand Guard: CMMG EML15 M-LOK
Finish: Cerakote Standard
Charging Handle: CMMG ZEROED Ambi
Weight: 4.0 lbs
Length: 25"
