Upgrade your Mega RotoFury Blaster with our 10kg / 12kg piano steel spring. Experience increased power and precision with this easy-to-install mod. Package includes 1x spring upgrade for the ultimate blasting experience. Dominate the battlefield with this powerful addition to your arsenal.

Specifications:

Material: piano steel

Type: 10kg / 12kg

Package includes: 1x mega rotofury blaster spring upgrade mod