Hello K'nex community PotatoCoffee here with a new series of K'nex guns. Here I have two different versions of the SACFARV1.0 a larger double trigger version, and a more compact single trigger gun. Both have the same idea in mind. This gun is inspired by RollerCoasters when the gun is shot the firing rod ''cart'' fires foward and hits the bullet and then continues around the circuit to be blocked by the trigger again. If you need me to explain more then I am happy to. Picture two has the chain rotator.