Blasterparts Nerf XD Modulus IonFire Upgrade Spring

PRODUCT DESCRIPTION:
The Blasterparts Nerf XD Modulus IonFire Spring provides a 7kg spring that improves range and velocity by 30-40%

FEATURES:
• Compatible with Nerf XD Modulus Ionfire Blaster

SPECS:
• Equivalent mass of spring: 7kg
• Firing range increase: About 40%
• Muzzle velocity increase: About 30%
• Difficulty level of spring installation: Moderate