FX Impact Power Tuning Hammer- and Valve Return Spring
Power tuning hammer spring + tuning valve return spring and rubber buffer ball for your FX Impact with Power Plenum.*** WORLD WIDE SHIPPING PER ENVELOPPE ***
Power Tuning Hammer Spring +Â Valve Return Spring + Rubber buffer Ball For Your FX Impact With Power Plenum
This is a set of 2 power tuning springs and rubber buffer ball for your FX Impact with Power Plenum and it consists of:
1x Valve Return Spring:
This slightly weaker valve return spring can be used on any FX Impact equipped with the genuine FX Power Plenum. This spring has a bit weaker powercurve compared to the original valve return spring what will result in a bit longer valve opening time to get some more extra power out of your rifle.
It’s great when you want to tune your FX impact for slugs or hybride slugs.
1x FX Impact Power Tune Hammerspring
This hammerspring has a bit more higher powercurve compared to the MKI hammerspring what will give you more flexibility and power adjustment options when using the powerwheel of your FX Impact.
It’s great when you want to tune your FX impact for slugs or hybride slugs and we prefer to use this spring over the factory spring when you use the powerplenum in the MKII
1x NBR Buffer Ball
The rubber buffer ball is placed inside the spring and limits the stroke lenght of the valve.
Please note:
When using this valve return spring in the M3 or an impact where the 720 plenum kit is fitted the rubber ball should not be used. The new valve adjuster alrady has a rubber buffer installed and adding this ball will result in a reduced stroke and loss in power.
Specifications
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Shipping and Payment
We ship these parts well packed for safe and undamaged arrival in the country of destination with tracked priority shipping (unless this is specifically stated otherwise in the product text). As the purchasing party you are responsible for checking that this product is legal according to your local laws and regulations. We ship on your behalf and therefore Huma Air can not be held responsible for any legal issues in the country of the recipient.
You can pay safely and secure online by means of all major payment providers, like paypal and credit cards companies.
Colin crook (verified owner) –
Works a treat as usual. Good work hums-air
Stewart Roden (verified owner) –
Great service again thank you.
Andrej (verified owner) –
Bought this for my Impact M2 in .22 cal. to shoot my selfmade 30 grain slugs.
With pin probe and additional weight washers on hammer chrony registered 1170 fps(!!!!).
Had to return stock valve spring and reg ptessure down to 140 bar.
Accuracy is good,but needs some time to fine tune the rifle.
Really happy with purchase.
Ken (verified owner) –
Very well made
Steven Howard (verified owner) –
This is a must have if your tuning your FX! With the High Flow V2 Dual Hole Transfer Port Set With Slug- and Pellet Probe i went from 850fps to 1085fps with 15.89gr 950fps with KO 23gr slugs! I also have the power plenum kit.
ROBOK (verified owner) –
Unbelievable results great shoot count with tighter groups
ROBO K YOUTUBE (verified owner) –
Huma tuning spring and hammer spring made a big difference to power and consistency highly recommended 5stars
Paul (verified owner) –
Excellent replacements for the standard fx springs