Kronos Upgrade Spring (130FPS)

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This is an upgrade spring for the Nerf Rival Kronos blaster. This spring will transform your Kronos Blaster into a cannon firing at around 130 feet per second. This custom spring h as closed ground ends and performs similarly to the popular K26 spring that is widely used in the Nerf modding community. What you get:1x Kronos upgrade spring Show more