If you want to turn it into a weapon skin, then yeah, it will just replace the weapon model.

I don't really have a goal for it - I just made it to get some practice and to play around with making high poly models. If anything, I'd probably just keep it in full auto and set it up like a machine pistol.

BTW, due to life and shit, I'm pushing the normal mapping stuff back to a week or two - whenever I have all the stuff on my plate done.