Home Forums Hunting & Shooting AR and Tactical Rifles anyone know about AR-10's?

I have my Colt 6920, a couple 6.8 builds, now I want a AR-10 in 338 Fed. I don't know much about the variations besides the DPMS and Armalite parts don't interchange (I think?). I was planning on building one from a Mega upper & lower but may just go for a S&W MP10 and shoot it as a 308 until I find the 338 barrel I want. My question is, are there certain barrels that will and won't work with the MP10 upper or should I be able to buy any 338 Fed AR barrel and he set?

Zero personal experience. A friend worked for a company in Iraq (early) and use an Armalite 308 off of a lot of rooftops, even out to 600yd using M118 with a Kenton turret. No issues with it.

Glenn Zediker says that AR10 are fragile, based off of their early use in the national matches. Of course, that is based on 20yo guns.

There isn't the same level of standardization with AR10's as with AR15's. You go with some no name stuff you may have something obselete in not too many years.

If a 308 will suit your needs, look to the Rock River Arms LAR-8. It's a much better gun then either the DPMS, R-25, or S&W MP10. You get a much more refined gun for the same basic money. It is also available in 7-08 and 243 if that suits your needs.

http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=402

http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=257

The MP10 may not work with DPMS barrels and bolts, I know for fact it won't work with DPMS uppers.

I'll send you a detailed PM on Monday of what I have found with the MP10.

I don't recommend the RRA for what you are trying do.

Thanks for the fast input guys, I'm really not sure where to start since there are a few specific routes to go. Like stated earlier, not being able to find certain parts because of an outdated or obsolete design is the scary aspect, that's what I really like about the basic AR15, its customizable to no end and I can find any part I need easily. I just need to go with the AR10 design that will most likely be around down the road (Armalite?).
Anyway, thanks again. Keep the ideas flowing!

Cory

Please Explain? No gunsmith or barrel maker can make a 338fed or 358win barrel to "screw on" a LAR-8? They do mount up like any other AR.

Sure, the barrel can be made, and I'm assuming you know the mechanics on the RRA .308 platform much better than I do for installation.

But, RRA uses their own AR design in the .308 platform, their parts only fit their rifles...a common problem in the .308ers.

IMO, it's a Ford-Chevy argument, I like the MP-10, you like the RRA.

Let it be known, I bought a SCAR 17S, and I even have magazines for it!

[quote=AH64guy]Sure, the barrel can be made, and I'm assuming you know the mechanics on the RRA .308 platform much better than I do for installation.

But, RRA uses their own AR design in the .308 platform, their parts only fit their rifles...a common problem in the .308ers.

IMO, it's a Ford-Chevy argument, I like the MP-10, you like the RRA.

[/quote

Actually, it's more of a Cadillac-Ford focus argument. A semi-custom gun like the LAR-8 is heads and shoulders above a mass produced gun like the S&W MP-10/DPMS.

I've owned both Caddy's and Fords. So you mean it's like the Ford is just as good but with the Caddy you get to pay more for parts when it breaks down?

Just go here:

http://www.armalite.com/ItemForm.as...ory=f4bd4a13-55d1-41aa-aea0-49488ec48776

and order your Model AR10T .338 Federal from Armalite. It will have a heavy stainless barrel, and will shoot well. Just be warned they are relatively heavy rifles.

You are correct that Armalite barrels & uppers do not interchange, but parts are readily available. Lower parts, like triggers and stocks take regular AR15 components. The magazines are proprietary to Armalite, but they are not hard to obtain, nor especially expensive.

Armalite does have a lower that accepts PMAGs, but it is only available in a light .308 carbine, and the heavy barreled SASS .308 model.

Yeah they're very heavy rifles if you plan on hunting them like I do. LGS has 2 Armalite AR-10's in .260 Rem and I think the only way I'd buy one is if I could lighten it up and get a light or standard 338 barrel.
I realize LMT is spendy but I always see their ad in mags for their rifle that can swap calibers easily and 338 Fed is an option, it'll likely be over my price range though.

And I do realize any AR-10 or variation is going to be 9+ pounds but that Armalite felt like it was 12+ pounds.
I'm hoping to stay at 10.5 # or under including 10 rounds and a VX-3 1.5-5X20. I think it can be done.

That's because it was 12+ lbs Any of the AR10 "T's" are straight bull barrels, all the way out to the gas block, then they're smaller straight profiles. The .260 and .338 are 22", the .308's are 20"

This one is right at 11 lbs including a Troy sling (not shown) empty. The barrel is a 18 inch Rainier Arms/Shilen Ultramatch, with Vortex hider.



I do have a Armalite 16" stainless barrel, which shot reasonably well ~1.5MOA, and is lighter than the Rainier. If you build I'd let you have it at a reasonable price.

A CTS stock, 16" barrel and A2 hider would approach than 10.5 lb number. Lots of metal in those actions, and they'll never be lightweight.

the RRA LAR-8 predator is 8.5pounds with a heavy match grade stainless barrel.

maybe, but the ford isn't too cheap to fix either , and it cost 1/3 the money of the Cadillac when you buy it. In the case of AR style rifles, the S&W MP-10 sells for $1400+ dollars. The RRA LAR-8 Pradator sells for $1500. So which would be the better value? the OVER PRICED S&W, or the priced correctly RRA? When you factor in all the premium features on the RRA guns, why would you buy anything else unless you were going to buy a Armelite, Lewis or Larue?

I won't buy a RR simply due to the fan boy mentality.

No one is as blind as the one who refuses to see.

Glad to know you also have money to burn. Anyone that thinks a DPMS or S&W compares to a RRA, isn't thinking correctly.

I'd be curious what they are calling "heavy". Armalite's "heavy" 7.62 barrels are 1" diameter under the handguard, and 7/8" at the gas block.

FWIW I was real interested in a RRA Predator a while back, and checked one out (a 5.56 model) The bolt did not function smoothly and I wasn't very impressed with it.

I've said before, my 308 is a bolt gun. I've been down the AR-10 road before and none of the new offerings impress me.

Keep those blinders snugg.