Looks cool, will most likely give it a go....as for the gun chatter going on....If its the part in the vid im thinking of, it was clearly an Uzi....and as for the comment that Raiyne made about the automatic pistol being a hack (sarcasm im sure ;p), let me introduce you to a common type of weapon:
http://video.fosfor.se/extreme-glock-18/
Granted, they dont make many Automatic pistols like that for common use, but they do make em, and with the proper gear (as seen in that vid) they can be VERY stable.