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1.
Mike, the phoenetic alphebet word for the letter M. Mike MiKe is used to decribe the caliber of a weapon.

AK-47 - 7.62mike,mike
M-4 - 5.56 mike,mike
MK19 - 40 mike,mike
m9 - 9 mike,mike
That M113 has a 40 mike mike on the mount.
by leadthrower August 29, 2006