I wired a pulse pistol once, i dont know nothing about making boards for electronics so i wired the back three leds, the one led on the side, and the led in the barrel together, connected them to a 6volt with a slide switch on the side of the gun, they dident have a sequence to them but looked good, i guess you can wire the barrel led seperatly to a micro push button and put it where the trigger would go so when ya pushed it the barrel lit up, nothing fancy, very basic, hope this kinda helps!