JGCWorker 5KG Modification Upgraded Spring Kit for Nerf Zombie Strike SlingFire Blaster Push Rod Set players need to carefully consider

players need to carefully consider

This product length is stretchable

Blaster NOT Included

Package Dimensions: 12*17

please select the correct combination in order to equip a full rail

JGCWorker 5KG Modification Upgraded Spring Kit for Nerf Zombie Strike SlingFire Blaster Push Rod Set players need to carefully considerSuitable: Appropriate for modification and replacement of Nerf Zombie Strike SlingFire Blaster. Advantage: This upgraded spring can provide stronger elastic force, promote gun's firing distance after replacement, increase the range to 1. 5 times or 2 times on the original foundation, brings user better usage experience. Note: As the spring's elasticity is too strong, this accessory set provides special matched cylinder protection ring, O ring to