http://news.bbc.co.uk/2/hi/americas/4199935.stm
Battery life seems a bit low, but I wouldn't mind having a few of these things for scouting or perimeter defense
Can be fitted with standard-issue M249 or M240 rifle
Has four cameras, night-vision and zoom lenses
Can travel over rocks and barbed wire
Batteries run for up to 4 hours at a time
Remote control unit has two joysticks and video screen
Costs $200,000 (£106,757) per unit
Battery life seems a bit low, but I wouldn't mind having a few of these things for scouting or perimeter defense