[neilage66]

There are *lightweight* barrel profiles for AR10 and a lightweight build could be put together. Research will reveal some interesting options.

What Jon said above about muzzle blast in a 16" barrel is mostly true...it's pretty substantial.
But, there is hope.
I have a SS 16" heavy barreled ArmaLite that I assembled, and at first I fired it with the standard A2 flash hider.
It is the reason I wear ear plugs and ear muffs nowadays.
I wanted to tame the muzzle blast a bit, so I researched and ended up with a Noveske KX3 ($75 used -$125 new) Flaming Pig.
It was worth it!
It really works wonders with directing the muzzle blast down range and makes firing the 16" very pleasant for the shooter and bystanders.

*these are not my pictures, nor my rifles

[locutus]

I have a DPMS LR 308 AP4. The "M-4" version of the basic AR-10.

DPMS: AR-15 Rifles, Parts and Accessories.

Light, fast, handy, accurate, and every time you press the trigger it says "bang."

16 inch barrel, telescoping stock and only 3/4 pounds heavier than the .223 version.

[j_lum]

I have the LR-308 ap4 as well. 16" barrell. Just today shot 4 holes in a 3/4" group at 100 yds after pulling my first shot with 150grain federal soft points, the cheapest shells wal mart had (haven't had a chance to hand load for it yet).



I'm very impresses with the rifle overall. The trigger sucked(dpms flaw) but I had it reworked by bill Springfield and it's night and day difference.

[Kdub]

Is an ar15 so bad? You need to look at what the guns purpose is. As an all around shtf scenarios a 15 is my preferred choice. Cheap ammo, lighter, gets the job done out to 300-400 meters and is a great cqb gun. I would get an Ar 15 first then look into an ar10. Also I wouldn't want to get hit with a 556 round. Pretty sure no one else would either.

[theropinfool]

I asked this same question a little while ago.

http://www.firearmstalk.com/forums/f20/ar-15-308-a-56528/

I finally decided it'd be cheaper to just get a nice .308 bolt action for long range and an AR-15 for the AR features I was looking for. Kinda like wanting a dump truck that handles like a corvette or a really hot girl with common sense. Just doesn't happen.