CMMG Banshee MK4 22LR Upper Receiver, 9-Inch
CMMG Banshee MK4 upper receiver in 22LR with 9-inch barrel, Armor Black finish, and M-LOK free-float handguard. Compatible with standard AR15 lower receivers.
Fits: AR15
The .22 LR AR Platform Done Right
The CMMG Banshee MK4 upper receiver represents a thoughtful approach to rimfire shooting: build an AR that happens to be chambered in .22 LR, rather than forcing a .22 into an AR's clothing.
Key Features
- Caliber & Barrel: .22 LR chambering with 9-inch barrel for compact handling and velocity
- Platform Compatibility: Works with any standard AR15 lower receiver—no special parts required
- Magazine System: Uses .22 AR conversion magazines for reliable feeding
- Handguard: M-LOK free-float design allows accessory mounting and maintains barrel accuracy
- Finish: Armor Black for durability and aesthetics
- Platform: Built on the proven MK4 platform
Why This Upper Matters
This is a genuine AR upper receiver, not a compromise. You get the ergonomics, controls, and modularity of the AR platform combined with the economical, low-recoil characteristics of .22 LR. Perfect for training, small game hunting, or simply enjoying accurate shooting without the noise and cost of centerfire ammunition.
What You Need
Pair this upper with your existing AR15 lower receiver. The .22 AR conversion magazines handle feeding reliably, and the free-float handguard ensures consistent accuracy.
