Magnum Research 18" Ultra Replacement Barrel for CZ 455, .22 LR, Black Aluminum, Suppressor Ready
Magnum Research
The Magnum Research CZ455BAR18G is an 18-inch replacement barrel purpose-built for the CZ 455 rimfire platform. If you're running a .22 LR and want to swap barrels for a shorter sight radius, faster handling, or to pair with a suppressor, this threaded option gives you a quick way to reconfigure your rifle without needing a gunsmith. The carbon fiber construction keeps weight down while the black finish resists corrosion in field conditions.
This is a direct fit for CZ 455 receivers and arrives ready to thread on a suppressor—no additional modification needed. The 18-inch length strikes a practical balance: short enough for compact carry and maneuverability, long enough to preserve reasonable velocity and sight radius for .22 LR target work and small-game hunting. Swapping barrels on the CZ 455 is straightforward enough for most shooters, though some prefer to have a gunsmith handle the job to verify headspace and alignment.
Whether you're building a dedicated suppressed .22 trainer, setting up a second configuration for your existing CZ 455, or simply prefer a shorter carbine profile, this barrel gives you the flexibility to adapt your rifle to your mission without buying a second gun.
| Brand | Magnum Research |
| Product Code | CZ455BAR18G |
| Caliber | .22 LR |
| Barrel Length | 18 inches |
| Barrel Material | Carbon Fiber |
| Finish | Black |
| Threading | Suppressor-ready (pre-threaded) |
| Compatibility | CZ 455 |
Yes. The CZ455BAR18G is engineered as a direct replacement for the CZ 455 platform. It threads onto your existing CZ 455 receiver with no modification required.
Yes. The barrel arrives suppressor-ready with factory threading already installed. You can attach a suppressor directly without any additional work or adapters.
An 18-inch barrel reduces overall length and weight for improved handling and portability. It's ideal if you prioritize maneuverability or plan to use a suppressor, which adds length overall. The trade-off is a slightly shorter sight radius and slightly reduced velocity compared to longer barrels, though this is minimal with .22 LR.
Barrel swaps on the CZ 455 are mechanically straightforward, but many shooters prefer to have a gunsmith handle installation to verify headspace and proper alignment. Check local regulations and your comfort level before attempting installation yourself.