[TLI]

"between it and the standard H&K 416 was a slightly heavier barrel profile compared to the standard M4-style barrel with its grenade launcher cutouts. It has a bayonet lug attached to the barrel which is something I have not seen before in H&K 416 marketing material. "

http://www.thefirearmblog.com/blog/2010/06/07/m27-infantry-automatic-rifle/

[jospehm20]

I read somewhere that the HK 416 was withdrawn from Army Spec Ops units because of lower receiver cracking. The article I read said it was a design flaw, not a manufacturing issue. I wonder if they fixed that?

[ThunderSleeps]

It has a bayonet lug attached to the barrel which is something I have not seen before in H&K 416 marketing material.

Why would you put a bayonet on an IAR/SAW/machine gun? I thought their job was to keep the bad guys a good ways away or dead... If they're in bayonet range, the weapon and the shooter have failed...