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CMMG 9mm 8in Banshee Fixed Ejector Upper Group Receiver Up to 14% Off w/ Free Shipping — 5 models

CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Charcoal Green, 99B9A0F-CG
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Midnight Bronze, 99B9A0F-MB
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Coyote Tan, 99B9A0F-CT
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Tungsten, 99B9A0F-TNG
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Armor Black, 99B9A0F-AB
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Charcoal Green, 99B9A0F-CG
1 of 5 images
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Charcoal Green, 99B9A0F-CG
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Midnight Bronze, 99B9A0F-MB
2 of 5 images
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Midnight Bronze, 99B9A0F-MB
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Coyote Tan, 99B9A0F-CT
3 of 5 images
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Coyote Tan, 99B9A0F-CT
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Tungsten, 99B9A0F-TNG
4 of 5 images
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Tungsten, 99B9A0F-TNG
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Armor Black, 99B9A0F-AB
5 of 5 images
CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Armor Black, 99B9A0F-AB

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9mm AR Pistol by Joe, Verified Owner, July 7, 2025
This unit works well. I mounted a Sig red dot and Griffin Optimus 9 suppressor. I removed the OEM muzzle device and installed a Griffin taper lock. Measured bore to muzzle device with an alignment and it was good. Used 147 subsonic ammo and hit 10 ou...
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Product Info for CMMG 9mm 8in Banshee Fixed Ejector Upper Group Receiver

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.image

Specifications for CMMG 9mm 8in Banshee Fixed Ejector Upper Group Receiver:

Manufacturer: CMMG
Caliber: 9mm Luger
Overall Length: 16.5 in
Barrel Length: 8 in
Barrel Twist Rate: 1-10
Threads per Inch: 1/2x28
Muzzle Device: CMMG Zeroed Muzzle Brake
Finish: Cerakote
Fabric/Material: Aluminum
Gun Rail: M-LOK
Weight: 3 lb
Barrel Material: 4140 Chrome Moly Vanadium
Magazine Included: No

Package Contents:

  • CMMG 9mm 8in Banshee Fixed Ejector Upper Group Receiver

CMMG 9mm 8in Banshee Fixed Ejector Upper Group Receiver Orderable Models

List of Orderable Models

  • CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Armor Black, 99B9A0F-AB , MPN: 99B9A0F-AB , UPC: 840442505783 , Code: 2CM-URC-BFIE1-99B9A0F-AB
  • CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Coyote Tan, 99B9A0F-CT , MPN: 99B9A0F-CT , UPC: 840442505806 , Code: 2CM-URC-BFIE1-99B9A0F-CT
  • CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Midnight Bronze, 99B9A0F-MB , MPN: 99B9A0F-MB , UPC: 840442505813 , Code: 2CM-URC-BFIE1-99B9A0F-MB
  • CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Tungsten, 99B9A0F-TNG , MPN: 99B9A0F-TNG , UPC: 840442505844 , Code: 2CM-URC-BFIE1-99B9A0F-TNG
  • CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Charcoal Green, 99B9A0F-CG , MPN: 99B9A0F-CG , UPC: 840442505790 , Code: 2CM-URC-BFIE1-99B9A0F-CG

CMMG 9mm 8in Banshee Fixed Ejector Upper Group Receiver Unavailable & Discontinued Models

List of Unorderable Models

  • CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Titanium, 99B9A0F-TI , MPN: 99B9A0F-TI , UPC: 840442505837 , Code: 2CM-URC-BFIE1-99B9A0F-TI
  • CMMG 9mm Banshee Fixed Ejector Upper Group Receiver, 8in, 1-10 Twist, 1/2 X 28 TPI, 16.5in, Sniper Grey, 99B9A0F-SG , MPN: 99B9A0F-SG , UPC: 840442505820 , Code: 2CM-URC-BFIE1-99B9A0F-SG
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