Rival Kronos Spring (135+ FPS) Strong Prime
Rival Kronos Spring (135+ FPS) Strong Prime
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.
FEATURES:
• Medium difficulty in installation
• Both ends flat/squared
• Average 135-140 FPS
SPECS:
• 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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This spring is incredibly strong and does hit the advertised fps. However I wouldn’t recommend it for a couple reasons. The first is that they are not kidding when they say it takes a lot of strength to prime. Because of the length of the prime and the ergonomics of the Kronos, it takes significantly more effort than even a 300fps primary. The bigger issue however is that the fps seems to actually be too high to work with the hop up tab in the barrel. This means that the round will hit very hard and fast up until about 20 feet, before braking abruptly and veering in a random direction. You can remove the hop up tab prevent that, but the trajectory will not be as consistent. I believe there is also a 120fps spring available, so I would recommend going with that as a better fit for this blaster.
This is great feedback. We highly recommend our 14kg Kronos spring. It hits around 125FPS but it is much easier to prime. That said, this 'strong prime' spring is the hardest hitting option we have. We'd recommend trimming your hop-up slowly to reduce the hop-up effect.
Easy to install with huge results!
Helped a lot
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.
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!