CMMG

Upper Group BANSHEE

RDB was an advancement from straight blowback. Compact action RDB was an advancement to the original RDB. This (fixed ejector on RDB) is a continued advancement bringing new technologies to the original platform.

If youre looking to build the most compact 9mm AR then look no further. CMMGs 9mm RDB uppers feature uncompromised design and engineering with styling that is never mistaken for something else. Having more options is always better like what magazines you would like to use. 9mm Radial Delayed Blowback uppers are designed exclusively to work with CMMG MkGs Mk17 and Mk9 9mm lowers or with mil-spec AR15 lowers using our 9mm Conversion Magazines. 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 9mm

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:

• Armor Black
• Platform: Mk4 Mk9 Mk17 MkGs
• Caliber: 9mm
• Operating System: Fixed Ejector Radial Delayed Blowback
• Barrel Length: 5
• Barrel Twist: 1:10
• Barrel Contour: MT
• Barrel Material: 4140CM SBN
• Barrel Twist: 1:10
• 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 EML4 M-LOK
• Finish: Cerakote Standard
• Charging Handle: CMMG ZEROED Ambi
• Weight: 2.6 lbs
• Length: 13.7