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Rival Kronos Spring (135+ FPS) Strong Prime

Rival Kronos Spring (135+ FPS) Strong Prime

Regular price $5.00 USD
Regular price Sale price $5.00 USD
Sale Sold out

This custom Rival Kronos spring has been manufactured and tested by the OOD team as a perfect upgrade mod for your blaster. This mod is not for young kids! You'll need fairly strong hands to prime this spring. This spring has been custom-built and tested to fit the Rival Kronos blaster.

• Medium difficulty in installation
• Both ends flat/squared
Average 135-140 FPS

• Cut-to-Length Compression Spring,
• Material: Made in the USA of USA spring-tempered steel
• Dimensions: 3.7" Long, flat on both ends

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Customer Reviews

Based on 132 reviews
Stuart R.
First mod success!

Easy to install with huge results!

Danny I.

Helped a lot

Ethan G.

It is what it claims to be. Got two of them, for my two thrifted Kronos. Easy to install, provided you have some experience taking apart blasters. Priming is very difficult with the stock slide, younger/sweatier individuals will have a hard time. The trick is to really yank it, instead of pulling. Maybe invest in some gloves if you're going to use this for a while. It is also worth noting that the hopup will get pretty crazy after installation, shots fly upwards exaggeratedly. I'm debating trimming the hopup down, but it's kind of funny so I might keep it.

Dan V.
Rival Kronos Strong Prime Spring

This spring definitely improved the power and punch of my Rival Kronos! Installation was very easy, even for someone with limited modding experience,
such as myself. I've ordered other items since from Out of Darts, and they get double thumbs up from me!

Micah S.

Rival Kronos Spring (135+ FPS) Strong Prime