I see that IRG has the Armalite Super SASS model on their US website for $2900 and change. If I didn't already have mine I'd be all over that...very nice!!!
I have one of those. Just waiting for one part to complete my build. Fireball has pictures of his up. Mine is all black though as I wanted to stick with the exact model. It's true Armalite and SASS including the gas block.

. Has taken me a few years to get all the pieces together. As they were very hard to import. One of the other issues with getting the Armalite AR10 rifles are the barrels. They are marked 7.62 which some days seems to make them harder to import.
Another way to go was when the LMT MWS was a smoking deal. I bought one on the EE NIB for less than new at the time with a free 20" SS 5R 1:11.25 barrel. But... I couldn't get that today for anywhere near that. Otherwise I'd recommend that rifle. You can change out the barrel yourself in about 2 minutes. Have a 16 CL 1:10 barrel and the Stainless one.
Morpheus has one of the AR10(t) DND versions for sale but it's a package deal. I have two of those rifles. Bought one from Wolverine back a ways (right place right time), bought the second one off the EE just recently. I've bought two off the EE in total for excellent prices (Fireball has one of them). If it doesn't say KAC, LMT, etc most people don't seem to know what it is. As a result getting a piece of Canadian history that shoots with the best was fairly inexpensive for a 308 AR.

They have a 24" SS 1:11.25 twist Lothar-Walther match barrel with black ceramic coating. Also threaded. Feed them 168 federal or 175 SMK reloads and you're laughing. Gives my 5R milspec a run for the money although the 5R usually just edges them out.
The DPMS while not as well built does shoot very well. That 24" heavy contour SS 1:10 twist barrel does it's job. The only thing is I found it doesn't like the same ammo as my other tactical precision rifles. IE 5R milspec bolt, Armalite DND rifles. But... put 167 lapua in it and it's a true target rifle. It's the true target rifle of the bunch. Not as cool but it's well suited for it's purpose.
For those not as familiar with the AR10/308AR rifles. There are pretty much two categories with a few crossing between the two. You can usually divide them by piston/DI and CL/SS barrel.
Patrol rifle:
-Piston with CL barrel.
-DI with CL barrel (Often not free floated barrel but may be)
-Some piston systems with SS barrel
Precision rifle:
-DI with SS barrel
-Some pistons with SS barrel
The piston system does rob ultimate accuracy. Fine for a DM rifle but for ultimate accuracy you have more potential with DI based systems.
For patrol rifles: Expect same accuracy as a regular AR15. 1.5-3 moa would be my guess.
-Sig 716 (short stroke piston system)
-New Ruger SR762
-DPMs oracle
-Armalite with CL barrels
More accurate and higher end patrol rifles: Expect around 1 to 1.5 moa with match ammo. A higher quality and heavier contour CL barrel will get you to that 1 moa mark (hopefully).
-PWS with SS barrel (uses long stroke piston)
-HK mr308 uses short stroke system, hammer forged heavy barrel
-LMT MWS with the CL barrel choice (DI, but has a hammer forged CL barrel)
Target rifles: Expect .5 to 1 moa with match grade ammo. sub 1 moa is a given.
-Armalite 10(T), Super SASS, Canadian 10(t) DND model. (old type used modified M14 mags, new version uses original Armalite mags ie SR25, DPMS mags)
-Noveske (based off AR10 system)
-DPMS LR308 model
-KAC models with SS barrel
-RRA LAR8 (Uses FAL mags)
-LMT MWS with SS barrel (These are Mike rock 5R rifled barrels).
-POF has a piston system with match SS barrel that from what I've read is in the precision rifle category. But.. I've heard some reliability issues and frankly I'm not a fan of the look. I still believe the piston system for a DM/target rifle is a big negative.
There are others but those are the rough groupings. Bottom line look at what makes an accurate rifle. The AR platform has success with accuracy because it follows most of the basic accurate rifle premises. Piston systems cause harmonics on barrels. Many makes including HK will go with a heavier contour barrel and or SS match barrel to try and eliminate this. But.. put that same barell on a DI rifle and you would get even better accuracy.
The four main things for the AR that will determine accuracy. 1) Ammo, 2) trigger, 3) gas system (DI or piston), 4) the barrel and is it free floated