I could be wrong it seems as though the classic only has one numbered power wheel but the light and the Bullpup have two for example the light has two Power Wheels on the left side of the gun one close to the butt stock and the other forward of the breach which is not an issue or problem I just want to wrap my head around how it all works so that I can be informed and also it will help me make a decision on which one I will pick if I happen to be the lucky winner