Prefer a front-carry 1-point sling with the M16/AR15,
you can hump it all day long and it still feels like a poodle shooter
My Army toy of choice was the M60-E3, & could carry it all day with 10 belts & be perfectly happy,
of course, I was built like Lou Ferrigno back then...6'3 & 220# of pure muscle
Nowadays I'd probably have to work a bit to hump the 60 & a ruck all day...
but it would be a Good Workout!! HooAh P.T.!! Good for you, good for me!!
Anyone kvetching about a rifle that weighs less than 10# needs to get to the gym fast anyway.
Some joker on another board was complaining about the Extra Added Weight of a gas piston system...
yeah, that .28# really slows ya down, does it sparky??
Note on 1, 2, & 3 point slings...
1pt, quick transitions but hits you in the nuts if you run with it and don't hold onto the weapon
2pt, simple and works, not as great for transitions
3pt, great for weapon retention, but is like wrestling an octopus because of all the extra webbing