Add the sterling smg

I think the app it really cool, and I do greatly enjoy it. Being a Star Wars fan, I also like to see the real guns that the Star Wars guns were based off of. Except, I really want to see the inspiration for the stormtrooper blaster, the sterling smg. Not only would I find it cool Star Wars wise, but I think it would b a cool gun in general. And I think that there could be a unique way of swapping mags (similar to the revolver). Id really love to see the sterling smg

ScorpionKing1138 about iGun Pro - The Original Gun Application, v5.23