This is based off the m60 but it's not exact. It has the feel of it though. If you think it's too short and squished (I think it sizes well with the player model) then you can do whatever you'd like with it to make it better, I don't really care. It comes with a semi realistic sight .png that I think suits it but is not the best possible sight for competitive use because it blocks out a bit of the screen. If anyone wants to edit it to make it better and and maybe add some focus blur (not good at doing this myself) I wouldn't mind uploading it here for everyone else.
Pictures of the gun can be found here: http://imgur.com/cI8oH,DZFhz,2HLt8,kwQH3,Ej2NH
Both the gun and the sights can be downloaded here: http://www.mediafire.com/?51i6g2wx5p47pej
Have fun and enjoy it or whatever.