PRODUCT DESCRIPTION: Consider the Nerf NX Rough Cut Upgrade Spring to give you optimal velocity for your Rough Cut Blaster. Offering 6kg mass that improves your range and velocity by about 30%. Contains 2x springs for the mod.
FEATURES: • Compatible with Nerf XD Rough Cut Blaster
SPECS: • Equivalent mass of spring: 6kg • Firing range increase: About 30% • Muzzle velocity increase About 30% • Difficulty level of spring installation: Moderate *measured with Nerf N-Strike AccuStrike darts