I was fooling around with Pimp My Gun and I made some Metro weapons. If anyone has a request I don't mind making your weapon. (Keep in mind that there aren't that many colours and sometimes finding the right pieces is hard but i'll do my best.)
Revolver with Stock, Optic, Silencer and Lasersight.
Uboinik Automatic Shotgun with Bayonet.
Duplet Double Barelled Shotgun.
VSV VSK-94 Sniper Rifle.
Bastard Gun with Silencer.