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Out Of Darts Upgrade Spring for Rival Kronos


This upgrade spring for the Kronos is a custom made spring designed by Out Of Darts. You can expect about 135-140 FPS performance after installing. It makes the prime heavy, so not suited for kids. A T-pull handle will make the prime a lot easier.

This item is discontinued and no longer available.

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SKU: SU1OODK26KRS001 Categories: , Brand: