

Air Venturi Feinwerkbau Mainspring, Fits FWB 124 Air Rifle
PY-A-3665
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Description
- Feinwerkbau mainspring
- Fits FWB 124 air rifle
- Meets or exceeds quality and requirements of the original mainspring
- For professional installation only.
Specifications
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3 of 3 Air Venturi Feinwerkbau Mainspring, Fits Reviews
This spring increased the performance of my 124 considerably. Better than new.
Things I Would Have Changednothing
What Others Should KnowBe VERY CAREFUL when installing this spring. Make certain you know what you're doing, and make sure your compressor can handle this job. Don't lose trigger spring - it will fly away..
I put this spring in my .20cal. Beeman R10....fit nicely and jumped the velocity back up to 750fps with H&N FTT 11.7gr
What Others Should KnowI used this spring at the recommendation of PA's service department....we were attempting to remedy the fact that the OEM springs are quite brittle....I've gone through 5 of them! More coils (39 vs 34) means less stress on each individual coil. So far... so good. However, if your OEM springs fit real tight (diameter), this solution may not work.
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Free shipping may not be combined with a coupon unless stated otherwise.
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May 19, 2014
By John
Ready to go right out of the box
Things I Would Have ChangedNadda
What Others Should KnowI put one in my FWB124D and got a very consistant 765 FPS