A Sig 552 commando carbine.
This weapon is now in use by the swiss military, it is chambred in .223 and has a barrel length of 22.6cm (8.9"). It fires at around 860 rounds per minute.
Hey 2 questions. Can u texture this weapon, and if you want to help me out, you could be the head modeler of weapons in this really complex game I'm making. You'd just have to make a few weapons...
Twittle texturing is really ez, just put up a request.