Upgrade your Nerf Modulus Recon MK II Blaster with our premium piano steel spring. Increase your blaster's power and performance with options of 4.5kg, 7kg, 8kg, or 12kg. Perfect for competitive play or backyard battles. Package includes 1 spring upgrade mod. Expertly designed for maximum impact.

Specifications:

Material: piano steel

Type: 4.5kg / 7kg / 8kg /12kg

Package includes: 1x modulus recon mkii nerf blaster spring upgrade mod