FX Impact air rifle Power Plenum kit 750 (750cc).

No instructions or support provided.

Full upgrade kit for all versions of the M4 and later versions of the M3 already fitted with the “power block”. To check your M3 to see if you already have the power block it will say “power block” on the rear block, or check that it has only 4 holes in the magazine area:

Kit includes valve adjuster, valve rod, valve housing, 750 plenum, high power hammer and springs, etc.

With this Power Plenum Kit for the FX Impact the plenum capacity will be increased to 75 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 Power Plenum 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 Power Plenum Kit for the FX Impact has the added advantage of working at a lower regulator pressure and having a higher shot count.

Please observe power level limits within your specific country restrictions