Grendel LMG

[BluntForceTrauma]

Everyone I know of has a squad auto, either mag-fed IAR or belt-fed LMG.

Just cuz everyone's doing it the way everyone else has always done it doesn't make it smart.

Still want to know WHY.

And what's the real difference between an IAR and an AR. Heavy barrel? That's it?

Somebody please justify belt-fed in a modern infantry squad in 2017. "Everybody else does it" is not a justification.

"Well, you really need 200 rounds on-board for those scenarios when you need to do a 200-round burst." THAT'S a justification. Not a very good one, but at least it's an attempt.

Or, "Mag changes every 30 rounds slows weapon too much and puts unit at tactical disadvantage."

Or, "Need physically heavier weapon for less round dispersion at range."

Somebody please think through the fundamental premise and articulate it.