CMMG Upper Group Resolute Mk4 .22Lr 16.1in 1-16 Twist 1/2 X 28 TPI 24in Armor Black
$689.99 at OpticsPlanet · 2 stores
In stock Sale
CMMG Mk4 .22LR Banshee Upper Group Receiver 4.5in 1-16 Twist 1/2 X 28 TPI 12.8in Midnight Bronze
No ratings yetBest price
$649.99at OpticsPlanet
Out of stock Sale checked Oct 22, 2026
In stock now instead
- CMMG Upper Group Resolute Mk4 .22Lr 16.1in 1-16 Twist 1/2 X 28 … $689.99at OpticsPlanet
- CMMG Mk4 .22LR Banshee Upper Group Receiver 4.5in 1-16 Twist 1/… $579.86at MidwayUSA
- Rock River Arms Completed Upper Receiver National Match A4 Comp… $680.00at MidwayUSA
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| OpticsPlanet | $649.99Salechecked Oct 22, 2026 | Out of stock | Buy at OpticsPlanet |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
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This part is out of stock at every store we track. These similar upper receivers are in stock, with today's prices.
CMMG Mk4 .22LR Banshee Upper Group Receiver 4.5in 1-16 Twist 1/2 X 28 TPI 12.8in Armor Black
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Price history
Dashed line = out of stock. Tracking since Oct 14, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| OpticsPlanet | $649.99 | $649.99 | $649.99 |
Since Oct 14, 2026.
About this part
The CMMG Mk4 .22LR Banshee Upper Group Receiver 4.5in 1-16 Twist 1/2 X 28 TPI 12.8in Midnight Bronze is a 4.5" .22 LR upper receiver from CMMG. One store lists it, OpticsPlanet at $649.99.
Fits and works with
- Caliber
- .22 LR · Shop matching ammo
- Bolt
- .22 LR · Bolt carrier groups
- Muzzle thread
- 1/2x28 · Muzzle devices
- Barrel length
- 4.5" · Handguards
Specifications
- Manufacturer
- CMMG
- Color
- Bronze
- Platform
- AR-15
- Caliber
- .22 LR
From the manufacturer
CMMG Mk4 .22LR Banshee Upper Group Receiver 4.5in 1-16 Twist 1/2 X 28 TPI 12.8in Midnight Bronze. 22 LR that looks like an AR build an AR that happens to be chambered in .22 LR. Equipped with a 4.5 barrel the shortest CMMG offers in any caliber this BANSHEE upper group is built on the Mk4 platform and is designed to work with any standard AR15 lower group and use our .22LR AR Conversion Mags. Specifications for CMMG Mk4 .22LR 4.5in Banshee Upper Group Receiver: Manufacturer: CMMG Caliber: .22 Long Rifle Overall Length: 12.8 in Barrel Length: 4.5 in Barrel Profile: Medium Tapered Barrel Twist Rate: 1-16 Firearms Threads Per Inch: 1/2x28 Muzzle Device: CMMG Zeroed Flash Hider Finish: Cerakote Gun Model: CMMG Mk4 Gas Block Journal Size-Diameter: .750 in Handguard Length: 4 in Gun Rail: M-LOK Gun Type: Rifle Gun Make: CMMG Bolt Carrier Group Included: MIL-SPEC Charging Handle Included: MIL-SPEC Magazine Included: No Mount Type: M-LOK Package Contents: CMMG Mk4 .22LR 4.5in Banshee Upper Group Receiver What firearm models does the manufacturer say CMMG Mk4 .22LR 4.5in Banshee Upper Group Receiver is compatible with? The manufacturer suggests that CMMG Mk4 .22LR 4.5in Banshee Upper Group Receiver is compatible with CMMG Mk4CMMG 22B5BD4-MB: Mk4 .22LR Banshee Upper Group Receiver 4.5in 1-16 Twist 1/2 X 28 TPI 12.8in Midnight Bronze
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