Worker Upgrade Spring 7kg for Nerf N-strike Elite Retaliator

- this nerf spring is mainly for the NERF toys.

- The nerf n-strike elite retaliator spring set uses imported material, it's high quality and increase the FPS.

- It's extreme anti-fatique, can be used for a very long time.

- The spring surface has been processed with silver plate

Specifications:

Brand: worker mod

Material: piano wire

Spring power: 7kg

Color： silver

Weight:40g