This precut Nerf Longshot spring has been cut from the K25 has been tested by the OOD team as a perfect upgrade mod for your blaster. This mod is not for young kids! You can lose the internal catches below the plunger. You'll need to remove the whole plunger rail in order to get inside. Consider removing the air restrictor for increased FPS. This spring has been custom cut and tested to fit the Nerf Zombie Strike Longshot CS-12 Blaster.
FEATURES: -Medium difficulty on installation -One end will be flat/squared, the other will be a raw cut. -Average 90-100 FPS from stock average at 75 FPS
SPECS: -Cut-to-Length Compression Spring, -Spring-Tempered Steel -Made in the USA of USA steel -155mm Long, hand cut, flat on one end.