User blog comment:Griever0311/Ask A Marine: Hammerdown/@comment-1260687-20100409014915

@DarthKenobi0: On foot, the M249 Para. Mounted, the M2. I can rock the BULLDOG SHIT out of an M2.

@Cpl.Dunn: I've never fired any, but I'm gonna say the Mk14EBR. Or the M107.