Tune Kits > All NEW- GSX-OS RWS-Diana 34,36,38,40,45,46, 300 kit!!!!!!!!
All NEW- GSX-OS  RWS-Diana 34,36,38,40,45,46, 300 kit!!!!!!!!

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Orig. Price: $89.00
Sale Price: $79.00
Prod. Code: 32-4-150

Improved 10-25-17

Super Easy Installation Compared To OEM and Other Kits

Special docile "old school"  12-13 ft lb. + or - kit for the above guns. ( .177 using CPL's-7.9 avg)

Up to 15 ft lbs in 22

Very smooth and docile shooting while running near full factory OEM power. Easier installation. Brought back from the 80's. Special noise reducing front guide- Updated 10-25-2017

No outer sleeves to fail or over-hardened tightly wound harsh mainsprings like the competition.

Special spring wire cocks easily and very smooth compared to other kits on the market.

A big improvement versus OEM.


Limited edition.

Kit buyers can order extra springs via email at $25 each with kit purchase. Foreign purchasers can request less spacing to get at or near 12 ft lbs. ( varies with gun tube quality etc.)

Not for steel trigger very old Model 45's. Works great in .20 or .22 as well

Kit includes front and rear guides, rotation washer, spring, and tar sample.

New replacement spring!