This is a hand cut K25 spring for the Nerf Rival Kronos, Mercury, Jupiter and Adventure Force Sentry X2. Offering 120-125FPS average that is legal for most games, the new Kronos Spring (Easy-Prime) offers a simple installation. The Kronos (Easy-Prime) is more suitable for a child's hand strength in comparison to our Kronos (Strong-Prime) that requires a stronger grip.
FEATURES: -95mm length -Lighter weight prime than a K26 variant -120-125FPS average (HvZ legal for most games) -One end squared, the other end hand cut
SPECS: -Cut-to-Length Compression Spring, -Spring-Tempered Steel -Made in the USA of USA steel -3.5" Long, hand cut, flat on one end.