50 Calibur ‘Beowulf’ M4 Gun
All ya terrorists out there, check out this vidoe and say you still wanna fight…
Wondering how much a .50 calibur is, then here is a pic (courtesy of wikipedia)
From left: .50 BMG, 300 Win Mag, .308 Winchester, 7.62×39mm, 5.56×45mm NATO, .22LR
Still have any doubts… 
looks impressive, but then the one thing to worry about will be the weight of the bullets and so the ability to carry enough of them.
i’m not sure abt the weight. But the video clearly says that with the size of the bullets less bullets fit into a magazine. hey why do you need so many when u can pack in all the punch into 1 bullet.
This weapon does not use the standard 50 BMG like the one in that picture, it uses a custom 50. round