AR-15 4.5 Barrel & Bolt Group Kit MT 4140CM 22Lr
$289.99 at MidwayUSA · 4 stores
In stock
Best price
$290.99at Ammunition Depot
In stock checked Oct 1, 2026
Where to buy
| Store | Price | Availability | Buy | Add to build |
|---|---|---|---|---|
| Ammunition Depot Best price | $290.99checked Oct 1, 2026 | In stock | Buy at Ammunition Depot | |
| GunMag Warehouse | $299.99checked Oct 1, 2026 | In stock | Buy at GunMag Warehouse | |
| Brownells | $305.99checked Oct 1, 2026 | In stock | Buy at Brownells | |
| OpticsPlanet | $309.99Salechecked Oct 1, 2026 | In stock | Buy at OpticsPlanet | |
| MidwayUSA | $309.99checked Oct 1, 2026 | In stock | Buy at MidwayUSA | |
| CMMG | $349.95checked Oct 1, 2026 | Check store | Buy at CMMG |
Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.
Price history
Lowest in-stock price in the last 30 days: $290.99 at Ammunition Depot. Dashed line = out of stock. Tracking since Sep 27, 2026.
Show the prices as a table
| Store | Latest | Lowest | Highest |
|---|---|---|---|
| Ammunition Depot | $290.99 | $290.99 | $290.99 |
| Brownells | $305.99 | $305.99 | $305.99 |
| CMMG | $349.95 | $349.95 | $349.95 |
| GunMag Warehouse | $299.99 | $299.99 | $299.99 |
| MidwayUSA | $309.99 | $309.99 | $309.99 |
| OpticsPlanet | $309.99 | $309.99 | $309.99 |
Since Sep 27, 2026.
About this part
The .22Lr Barrel & Bolt Group Kit M4 is a .22 LR barrel from CMMG. It's sold by 6 stores (5 in stock), from $290.99 to $349.95. The lowest in-stock price in the last 30 days was $290.99 at Ammunition Depot.
Fits and works with
- Caliber
- .22 LR · Shop matching ammo
- Bolt
- .22 LR · Bolt carrier groups
Specifications
- Manufacturer
- CMMG
- Platform
- AR-15
From the manufacturer
The CMMG .22LR Barrel and Bolt kit provides everything you need to convert your existing upper to a dedicated .22LR. Just purchase a magazine and you are ready to go. For best performance use a round style hammer as notched hammers can cause function issues and 36 grain plated nose bullets have proven to be the best choice for function.
- 16.1” Barrel
- .22 Long Rifle
- Barrel and Bolt combo
Similar barrels
AR-15 22lr Barrel & Bolt Kit 9" MT
$289.99 at OpticsPlanet · 5 stores
In stock Sale
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