The first SWEP i made. It's nothing special, really. It's pretty much UMP that only fires semi-auto. The weapon is extremely overpowered and very accurate. "G.U.N" means absolutely nothing, if you're wondering. I just needed a name for the thing and gave it that. This SWEP is old (i'm currently writing this in 2014) and the only reason i uploaded it here was to share it with my friends who i used to play Gmod 9 with.