MUST SEE - Future Weapons, NEW The XM307 Auto-Grenade Launc

http://www.playANDwatch.com -- Future Weapons: The XM307 Auto-Grenade Launcher -- *Video courtesy of and copyright owned by Discovery Communications*Mack takes a look at the XM307 Launcher/50 calibre machinegun.And has some fun blowing stuff up.:)The program was canceled in 2007.http://www.globalsecurity.org/militar...