CMMG

Upper Group Banshee

Gaining more acceptance as the go to personal defense caliber for many shooters in recent years 5.7x28mm has proven itself to be well suited for the job. With incredibly flat shooting performance and low recoil 5.7x28 excels at closer ranges while still providing ideal penetration. Equipped with a 5 barrel this is the most compact 5.7x28mm upper group CMMG offers. CMMG 5.7x28mm uppers are designed to work with CMMG Mk57 lowers or standard AR15/Mk4 lowers (when used with 5.7 AR Conversion Mags). 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.

Lifetime Quality Guarantee

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

Description:

• Tungsten
• Platform: Mk4 Mk57
• Caliber: 5.57x28mm
• Operating system: Radial Delayed Blowback
• Barrel Length: 5
• Barrel Twist: 1:9
• Barrel Contour: MT
• Barrel Material: 4160CM SBN
• Muzzle Device: CMMG ZEROED Linear Compensator
• Muzzle Thread: 1/2 x 28
• Upper Receiver: Billet 6061 T6 Aluminum
• Hand Guard: CMMG EML4 M-LOK
• Finish: Cerakote Standard
• Charging Handle: CMMG ZEROED Ambi
• Weight: 2.5 lbs
• Length: 13.8