Both of these replies sucked. You can get the achivement with any combination of all the weapons. So if you have a lost version of one weapon but the normal version of all the others, it's still fine. Mix and match how you like.
"Mix and match how you like" is exactly why the first two replies were great. You put them together like a jigsaw. See what happens when you all work together and definitely don't be horrible for no reason?