CMMG

Upper Group Resolute

Personal defense calibers like 5.7x28mm have become a big thing in the last few years and if youre looking for PDW ballistics and the classic style and balance of a carbine then youre in luck. Combine this RESOLUTE Upper Group with either our Mk57 Lower or a standard AR15 lower group and CMMGs 5.7 AR Conversion Magazines and youll be ready to hit the range! 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 Muzzle Brake 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.

Lifetime Quality Guarantee

Every CMMG product is backed by a Lifetime Quality Guarantee against material and workmanship defects.

Description:

• Coyote Tan
• Platform: Mk4 Mk57
• Caliber: 5.57x28mm
• Operating system: Radial Delayed Blowback
• Barrel Length: 16.1
• Barrel Twist: 1:9
• Barrel Contour: MT
• Barrel Material: 4160CM 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: 25.3