Brand: CMMG
Model: Banshee
Caliber: .22lr
Platform: AR, Mk4
Barrel: 4.5" 4140CM, SBN
Color: Armor Black
Finish: Cerakote
Gas System: Traditional Blowback
Muzzle Device: CMMG Zeroed Flash Hider
Muzzle Thread: 1/2-28
Twist: 1:16
Receiver: Billet 6061 T6 Aluminum
Handguard: CMMG EML 4"
Attachment Style: M-Lok
BCG: Yes
Charging Handle: CMMG Zeroed Ambi
Weight: 2.2 lbs
Length: 12.8"

Features

CMMG BANSHEE .22LR 4.5" Upper Group – Compact Precision

Turn your AR into a precision rimfire machine with the CMMG BANSHEE .22LR 4.5" Upper Group. Built on the MK4 platform, this isn’t just a replica—it’s a true AR chambered in .22LR, compatible with any standard AR-15 lower receiver. Designed to work seamlessly with CMMG’s .22LR AR conversion magazines, it’s a versatile setup ideal for training, plinking, or small game.

Each upper comes fully equipped with CMMG’s Zeroed accessories, including a polymer dust cover, .22LR ambidextrous charging handle, and .22LR flash hider. Offered in a variety of durable Cerakote finishes, the BANSHEE upper includes the bolt carrier group, giving you everything you need for a smooth, out-of-the-box upgrade.

Report incorrect product description

Reviews

Q & A

Retail Stock

Compliance

Shipping Restrictions

It is the customer’s responsibility for understanding state laws regarding all purchases made. For a comprehensive list of all Shipping Restrictions, please refer to our Shipping Restrictions By State Page found Here.

All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Local Law Compliance

Certain firearm parts and accessories, including AR-style upper receivers, are subject to complex and frequently changing federal, state, and local laws and regulations. While an upper receiver may be lawfully sold and shipped as a component, the legality of possessing, assembling, configuring, or using an upper receiver in certain states (e.g., California, Washington State) and localities depends on how it is assembled, combined with other components, and ultimately used. You are solely responsible for ensuring that any assembly, configuration, possession, or use complies with all federal, state, and local laws, including any so-called “assault weapon” bans and short-barreled rifle restrictions. We do not provide legal advice and are not responsible for unlawful configurations or uses.