Making a weapon attachment increase ammo consumed per shot

[ShinKungFuMan]

Trying to brainstorm this here, because I know it should be possible just not sure on the how. I'm trying to recreate the Tri-Beam Laser Rifle barrel, and one of the key features was while each shot did their full damage, the gun itself used 3 rounds per shot. It's pretty much a given this will need a script, which should be able to run off a weapon enchantment, but I'm still a little rough on some parts of papyrus scripting too. Has anyone looked into this themselves?