We put the “strong” in Strongarm – with our Blasterparts Modification Spring

Our Blasterparts Modification Spring lets the Strongarm fire off darts with noticably more force. Enjoy increased range and velocity after installing this modification spring!

Features of the Modification Spring for the Nerf Strongarm

• Equivalent mass of spring: 6kg
• Firing range increase: about 30%
• Muzzle velocity increase: about 50%
• Difficulty level of spring installation: moderate

Don't be afraid of all those little springs

First remove one half of the sled before you unscrew the blaster. Try to use as few force as possible because otherwise you may loose some parts of the internals. However a bit of force may be required as the two parts are clip-joined together.

Before removing the internals make sure you know where each part belongs. Keep in mind the position of the small springs: One at the trigger, two in the main compartment. There is one spring hiding under the catch in the back.

Now remove the trigger and the catch. Then take out the main compartment and the plunger. Remove the spring by twisting it over the hooks and wind it off. Screw on the new modification spring and lock it into the hooks at the front. Insert the plunger into the plunger tube with the hook at the back facing downwards.

After reinstalling the main compartment place the catch into the back so that it moves up and down gently. Insert the small catch spring through the little window. Then put the trigger back in place and test if the catch moves when you activate the trigger.