PRODUCT DESCRIPTION:
Increase the velocity and range of either your Nerf Firestrike, or Firestrike XD Blasters. Contains a 6kg spring that requires a moderately difficult mod.
FEATURES:
• Compatible with Nerf Firestrike and Firestrike XD
SPECS:• Equivalent mass of spring: 6kg
• Firing range increase: About 80%
• Muzzle velocity increase: About 100%
• Difficulty level of spring installation: Moderate
