Figured I'd quit procrastinating and go ahead and draw one of my newer designs with a Grenade launcher. First one I've drawn in... well months.

The magazine would be used as a handle when pulling the trigger on the grenade launcher. Forgot the technical 'size/caliber' of the grenade launcher, want to say it'd be like a M203 but since I'm not sure I won't make any assumptions. The SMG fires the same as before stated in the previous picture(s) a 5.7x28mm. Now that it has a grenade launcher the SMG can become twice as useful than it was without the grenade launcher.

Not much else I can say.