Fictional Firearm: HC-SG518 Submachine Gun

Ah, now here we come to your expertise. I take issue with all those who insist on telling a gun artist exactly what is inspiring him in any given situation. In my opinion, they are show-offs who would like the world to know how many guns they can recognize as a byproduct of too many videogames. But I also don't like a gun advertised as "original" with so many obvious likenesses. You have managed to avoid all that and still put the best elements of the inspiring real gun into what is now the HC-108.

But now, onto the gun itself. Alas, the fire selector is the wrong shape for its position. This is precisely what the UMP style fire selector is designed for. A google image search will tell you what I mean.

Now this might just be me, but the MAC-10 style stock looks a bit flimsy for the gun.

But it's all good, all really good.