Unlock the full potential of your bk1 AEG blaster with the BK1 AEG Nerf Auto Blaster Spring Upgrade 1.6mm. This spring upgrade mod greatly increases velocity and shooting range, when used with an 11.1v lipo battery. Transform your blaster into a high-performing weapon with this easy upgrade.

Features:

- spring upgrade mod for zuis bk1 blaster.

- graetly improve velocity and shooting range.

- need use it with 11.1v lipo battery.

 

Specifications:

Brand: zius.

Type: 1.6mm.

Material: piano wire.

Length: 18cm.

Package includes: 1x bk1 blaster spring upgrade.