Not realistic DURRRR. Just something I did for fun. So, it's an AMT Hardballer with a box silencer on top of a silencer on top of a compensator, a Terminator-style laser sight on an MP5 rail and a LAM. Silencers optional. Wees, buypics and two sound sets with five different firing sounds each. Speaking of which, the sounds are supposed to be overpowered and crazy. It should go without saying that the scripts are absolutely necessary.
Update: Fixed missing texture and consistency. (Thanks Itbankrock.) Had to scale down the wees a bit, but them's the breaks. :P
Map: ttt_gunkanjima (quick port to CSS)