Upgrade your blaster with the Helios XVIII-700 Blaster Upgrade Spring. Made from durable piano steel, this spring comes in 12kg or 15kg options for increased power. It also includes an o-ring for easy installation. Take your game to the next level with this expertly designed upgrade.

Specifications:

Material: piano steel.

Type: 13kg / 15kg.

Package includes: 1x helios vxiii-700 blaster spring upgrade mod with o-ring.