NOTES FROM LUKE:
The 4.5KG Jolt Spring is perfect for the Nerf book mod guide. Constructed of steel the Jolt Spring is durable and provides noticeable improvement.
FEATURES:
-Increased range
-Steel Construction
SPECS:
-4.5KG rated spring
-Includes bumper
ADDITIONAL LINKS:https://outofdarts.com/products/nerfmodbook
