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Now you can upgrade your FX Impact MKI or MKII with the Power Block! It’s great for use with heavier slugs at long distances .This FX Impact Power Block Kit allows better air flow, efficiency, and power potential.

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The FX Impact MKI & MKII Power Block Kit allows better air flow, efficiency, as well as power potential. Now you can upgrade your Impact with the Power Block! It’s great, of course, for use with heavier slugs at long distances.

The unrelenting innovation continues as FX proudly announces the addition of the rear Power Block to the FX Impact M3. No rifle has continued to advance what airguns are capable of like the FX Impact. It’s both iconic and beloved for good reasons. Now you, too, can upgrade your MKI or MKII FX Impact!

As much as the power plenum stages the power capabilities of the FX Impact, the rear block handles that transfer of power. It works much like a hot rodded car’s sported and polished intake manifold. FX has completely redesigned the rear block and the valve house which allows better air flow, efficiency, and power potential.

The Power Block will be of particular use for those who desire to shoot the Impact at higher power, especially those shooting heavy slugs. The pressure in the plenum can now better translate to the pressure behind the slug upon firing, allowing higher speeds and power. If you want to shoot heavy slugs, add the FX Impact Tungsten Hammer weight to also allow for higher working pressures.

Moreover, the FX Impact 72cc Power Plenum adds an extra amount of regulated air. This results in better efficiency of the rifle at higher power levels, with a lower regulator setpoint. Of course, you’re still able to reduce the power for lower velocities.

Does your FX Impact MKI/MKII already have a Power Plenum installed? In this case, purchasing just the Power Block kit for FX Impact M3 variant is sufficient.


This Power Block Kit FX Impact MKI & MKII consists of the parts listed below:

10337: Valvetube Power Plenum Impact M3
10338: Valvetube End, Power Plenum Impact M3
20671: Valvehouse, Impact, Big Plenum
20271: Hammer weight Big Plenum
2604: Hammerspring 52 mm
2602: Spring 1×6, 2×45
20275: Valve pin Big Plenum complete
19726: O-ring 5,5 x 1,5 NBR 70
5154: O-ring 16,0 x 2,0 NBR 90
5113: O-ring 20,24 x 2,2 NBR 70
19768: O-ring 2,84 x 2,62 PUR 90
19763: O-ring 9×1,5 NBR 90
19616: Valvestop Impact
20277: Valve adjuster screw
10327: Valve adjuster knob Impact M3
19717: Countersunk screw M6x8
19722: O-ring 9×1,5 NBR 70
19227: Rubber ball 4,0mm NBR75
20562: Hammer Impact HP Complete
10325: Valve stop piston Impact M3
20670U: Rear Block Impact Power 2022 without serial number
5110: Rubberball 4,75 NBR75


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