A post from wired.com shows 10 weapons that can be seen as futuristic. Right now.
http://www.wired.com/dangerroom/2010/01/sci-fi-weapons/all/1
1. XM-25 grenade launcher
2. Maars system ~ Some remotely operated turret
3. Active Denial System ~ Causes a burning sensation on your skin to prevent overcrowding of many soldiers.
4. Long Range Acoustic Device ~ Sound that can be heard 300 metres away clearly to send warning messages
5. MQ-1 Predator ~ Aircraft with plenty of dangerous ammunition :http://www.wired.com/dangerroom/2009/10/up-to-320-civilians-killed-in-pakistan-drone-war-report/
6. Improved Flash bang grenade ~ Bright flash of light without the dangerous shockwave
7. Tazer Shockwave barrier ~ Blocks out even the angriest mobs
8. Nauseating Lightshow device ~ Makes you seasick
9. LA-9/P ~ A warning device that can fire over 4 kilometres away
10. Laser Avenger ~ Can take down the most dangerous aircraft even drones.
