FX Impact Tuning Hammer Spring

With this spring and the huma high pressure regulator. The V2 from huma and slug probe. The mk2 shoots now 1005fps with the 600 mm .30 barrel with the fx hybrid at 170 bar. Before it was 833fps at 120 bar and more pressure was a lower speed.

Always quality parts help produce over 1000 fps for my FX Dreamline

Good

This hammer spring is much stiffer than the original, it makes a harder hit! Use with slug power kit makes big different! 😉 Recommend! Thanks Huma-Air!

Great quality springs it really increases the power curve for heavy slugs

Great add on to obtain the best adjustability out of your FX Impact. This spring will let you go from high power at higher reg pressures to lower power levels. Highly recommended and a must after upgrading to the Power Plenum kit

Great product,usual great service !

Great bit of kit well made and fast service

Products and service is A1 +++++
Will always come come back to this company for my FX parts.

Excellent product, loads of slack on hammer adjustment still easily shooting over 900fps on min with jsb mk2 .25cal 150bar saving air that I couldn't do with factory spring! Thanks guys!

Another well thought out quality upgrade to my FX Impact. HUMA lead the way in perfection.

Great quality products 👍

I bought this spring to replace the standard spring in my .25 FX Crown as I have fitted a 8.5gram hammer weight & Huma extra high pressure regulator & 6.35mm valve seat.
The Huma spring is exceptional quality & postage to 13 days delivered to my door in Australia.
Exceptional team at HUMA.
You should all be very proud to work for such a company.
I hope they look at making the same power spring &
valve stem they have made for the FX IMPACT for the FX CROWN.
FINGERS CROSSED IT WILL HAPPEN

Werkt prima, samen met de dualflow tf poort en de pin probe heb ik de regulator druk van 135 bar terug naar 105 bar kunnen zetten zonder veel snelheid te verliezen

Very good product that Huma gave to thank you