Can i shoot 45 GAP out of my 45 ACP There the same size just the glock's are a bit shorter?

I'll add a fourth no, no, to this list. However, if you do attempt it, please video the resulting catastrophic disembly of your gun and disfiguring injuries to your hand and face. Post it on Utube as a warning to others about using ammo in guns not chambered for them.