landon.key posted this on 07.09.2008 at 10:09 PM with a worthy factor of 4
This is a great demonstration of a portable autonomous sentry. The sentry is mounted with a paintball gun but you can imagine it could easily be mounted with something more powerful. It is also very accurate.
http://postworthy.com/Worthy/ex/Portable_Autonomous_Sentry_Demonstration/15...