ok this is my first instructable so please no anti-knex comments and i know its a block trigger but its really powerfull for its size.
Step 1: The Barrel and the Trigger
Trigger : Take a orange connector and add one green rod and a small exotic piece. Pass a blue rod in the trigger. Clip this on the barrel. (ONLY one space between the two blues rods!!)
Handle : Just add a yellow rod on the barrel.
Step 2: All the Rest.
Rubber band support : Add two white rods on the two sides.
Step 3: Mods
2- take the green rod on the trigger.
3- change the support rods for green rods.
If you have other mods just tell me.