I'd like to pickup a couple of wilson mags for a SA Mil Spec I have on order. On another thread they were suggested. I went to the wilson site and boy are there a lot of different codes! Question is, will the aluminum show when a mag is inserted? The black magazines are a bit more. For my gun, it looks like their standard 47 would fit. It's a 7 round which is what the gun is. Any guidance on this would be appreciated! Thanks!