KTP is a dual barrel knex pistol, that has 3 firing modes:
Semi auto (Strong)
Dual shot (Stronger)
or Single shot (Strongest)
I built it as a sidearm, and it works great.
You can easily turn it into a rifle,
but I didn't have enough knex to add a longer barrel or a stock.
The single shot can put a quarter inch dent in drywall!
It help if you tape the ammo though....
Its semi auto mode isn't quite true semi auto, but it fires at the same rate as one.
You see, it has two triggers, side by side...
Let's get building!
and credit to DJ Radio for the inspiration
(Single and dual shot mode shown in pics)
Step 1: Barrel Part One
This is the back end of the barrel.
1. Build four of these.
2. Clip them onto a yellow rod.
3. Build this.
4. Put them together here.
5.What you should have
The yellow rod might slide out, but just keep it there for now.