With this Power Plenum Kit for the FX Impact the plenum capacity will be increased to 54 cc.
With the growing use of slugs, there’s also more demand for more power to shoot these projectiles at a higher speed and this Kit will provide your FX Impact with the breathing space required for that.
Besides the possibility for higher speed (of course you can still set your FX Impact to lower speeds) the Kit for the FX Impact has the added advantage of working at a lower regulator pressure and having a higher shot count.
the FX Impact consists of a bigger plenum, hammer and spring, valve housing, valve pin, renewed valve adjustment and multiple O-rings and screws. You can retrofit this kit on both the FX Impact MKI as the MKII.
1. Higher velocities can be obtained. For instance, the standard .22 caliber FX Impact previously achieved 32 Ft/Lbss. of muzzle energy with standard pellets. With the FX Power Plenum added to the .22 caliber Impact, though tuned from the factory to still shoot at 32 Ft/Lbs, you can now adjust the gun and shoot heavier slugs and obtain as high as 60 Ft/Lbs of Muzzle Energy.
2. Lower velocities still available. While the higher powers are now achievable, often shooters want lower power to for different shooting situations (or to simply extend shot count). Thanks to the internal part changes to the Impact, the lower velocities can still be achieved.
3. Increased shot count per fill. With the FX Power Plenum, the 75 shots per fill that the standard tuned .25 caliber Impact previously achieved, is now increased to 110 shots per fill. That’s just one example.
4. Lower regulator pressure required. You get the same velocity result with lower regulator pressure due to the FX Power Plenum. Lower pressure will also result in less wear and tear maintenance to your rifle, says FX Airguns.