13KG Upgrade Spring for NERF Rival Curve Shot Helix XXI-2000 Blaster

BLASTERMOD Upgrade Spring design for Nerf Blasters. It can improve shooting range and perforance. This Upgrade Spring is only for Nerf Blaster toy,All parts are separate,and the product included small parts, you need to install and assemble your blaster,Please be careful installing the parts to avoid damage to your Blaster! In order to ensure safety, please wear goggles when you use and modify the blaster. Suitable for people over 14 years old, modification requires modding skill, it is best to refer to the relevant instructions to reduce unnecessary trouble.USE AT YOUR OWN RISK! Modifying the blaster with third party parts may increase the wear on your blaster,May shorten the life of the blaster.Buy purchasing this product,you agree to understanding and accepting this risk. In addition, some blasters are very difficult to reassemble, and we won’t be able to troubleshoot problems caused by user errors.PACKAGE INCLUDED 1×SPRING Set ONLY! 1x Ring