Apollo XV-700 Blaster Upgrade Spring weight:13kg you can install a 19mm

you can install a 19mm diameter outer barrel

Package Weight: 2274g

Enhance performance and durability with parts such as a mag release

Colour: black

Side Rails fit a variety of accessories

Apollo XV-700 Blaster Upgrade Spring weight:13kg you can install a 19mmUpgrade your Apollo XV 700 blaster with this premium piano steel spring. This 13kg 15kg spring will enhance the power and velocity of your nerf rival blaster, providing a competitive edge in battles. Package includes 1 spring and o ring for easy mod installation. Specifications: Material: piano steel Type: 13kg 15kg Package includes: 1x nerf rival apollo xv700 blaster spring upgrade mod