Upgrade your blaster with the Takedown XX-800 Blaster Upgrade Spring. Made of piano steel, this spring comes in 11.5kg or 13kg types for added power. Includes o-rings for easy installation. Increase your blaster's strength and performance with this essential upgrade.

Specifications:

Material: piano steel

Type: 11.5kg / 13kg

Package includes: 1x Takedown XX-800 Blaster spring upgrade mod with o-rings