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Author Topic: AR in 243 build...  (Read 3551 times)
sniper20
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« on: December 18, 2011, 01:48:53 AM »

So I have a guy that wants me to build him an AR, but in a 243. Now, my question is, other than the bolt and barrel, is there a difference in any other AR? I know the lower is going to be lower to accomodate the larger magazine, but is there any other difference? Is the bolt carrier bigger? Is the recoil system different?

I can never find just an upper, and I have never seen one in person to observe it, so thought you guys might be able to shed some insight on the issue... Thanks.
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« on: December 18, 2011, 01:48:53 AM »

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fla9-40
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« Reply #1 on: December 18, 2011, 07:13:00 AM »

WOW 243 that would be cool! I did not know you had that option. I have seen your popular 223 and 308 and just recently seen on the net someone offering an upper in 7.62x25. I'd like to have one in 243, keep us posted what you find!

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Reload3006
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« Reply #2 on: December 18, 2011, 07:58:28 AM »

basically your going to be doing an ar 10 build. as far as all the parts except the barrel I would say would be the same as the 308
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mdr8088
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« Reply #3 on: December 18, 2011, 10:45:00 AM »

Wow, .243 in an AR.  If they can put .308 in there, why not.
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Dan Scott
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« Reply #4 on: December 18, 2011, 11:03:08 AM »

It would have to be built on the AR-10 platform.  Other then the barrel it should be identical to the AR-10 in 308.
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NicNac
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« Reply #5 on: December 18, 2011, 01:09:44 PM »

Yep, the guys are correct it'll be built on a 308 or AR-10 platform. You may be able to purchase a upper assembly or build it your self I would say it probably uses the same buffer and spring assy as the .308 but you could give these guys a call and they could point you in the right direction.
I have gave this cailber some thought and not sure if I want it in a bolt or in Semi.

Just Barrels  http://dpmsinc.com/store/?cat=1792
http://www.midwayusa.com/product/397048/ar-stoner-barrel-lr-308-243-winchester-medium-contour-1-in-8-twist-24-fluted-stainless-steel

Barrels assmeblies  http://dpmsinc.com/store/?cat=1614
http://www.midwayusa.com/product/597175/dpms-lr-308-a3-upper-assembly-243-winchester-1-in-10-twist-20-bull-barrel-chrome-moly-matte-with-free-float-handguard-muzzle-brake

Good luck and keep us informed as to how it goes.  cool



« Last Edit: December 18, 2011, 01:34:09 PM by NicNac » Logged

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sniper20
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« Reply #6 on: December 18, 2011, 08:20:18 PM »

So I can change the bolt, and barrel (with the AR 10 lower) and I can use everything else from the AR 15 line? Just want to make sure so I can get a good feel on prices for stuff...
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mdr8088
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« Reply #7 on: December 18, 2011, 09:25:47 PM »

Sniper20, I'd figured you on a .308 guy?  Why .243?
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NicNac
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« Reply #8 on: December 18, 2011, 09:58:28 PM »

So I can change the bolt, and barrel (with the AR 10 lower) and I can use everything else from the AR 15 line? Just want to make sure so I can get a good feel on prices for stuff...

When you say everthing else from the Ar 15 line, do you mean (lower stuff) trigger  assy and springs and pins and such?  If that is what you are saying. Then Yes I believe that to be true.  You will need to use the .308 buffer and spring for the bolt carrier.



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Jimbo88mm
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« Reply #9 on: December 19, 2011, 01:45:14 AM »

So I can change the bolt, and barrel (with the AR 10 lower) and I can use everything else from the AR 15 line? Just want to make sure so I can get a good feel on prices for stuff...

You need an AR10 style upper and lower.  The bolts & Barrel are going to be for an AR10.  Stuff like the trigger and stock can work with either but you really need to look at this as an AR10 project, not an AR15 in 243.. its a different animal.

Also, things are less interchangeable between AR10s then what we are use to in the AR15 world, in other words I'd recommend you get an upper and lower from the same manufacture rather then try to mix and match.

Lastly.. 243 is a bit of a barrel burner in a bolt action.. I would hate to think how quickly an AR10 in 243 will waste a barrel.  I don't know what the intended application is but you may want to have your friend consider 7mm-08 or the good old 308 instead.

Oh, and don't forget there are a couple of 6mm options available in the standard AR15 platform.

Good Luck!
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« Reply #9 on: December 19, 2011, 01:45:14 AM »

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Reload3006
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« Reply #10 on: December 19, 2011, 07:10:30 AM »

yea ar15 in 6ppc tack driver and in terms of ballistics gives up very little to the 243
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dirtshooter
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« Reply #11 on: December 20, 2011, 08:10:46 PM »

my 6.5 is a beast grin
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sniper20
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« Reply #12 on: December 21, 2011, 11:31:45 AM »

I showed him my 6.5 Grendel, but he didn't think it would do anything... I informed him very differently, but he doesn't know much about guns at all...

He wants a 243 because it's a tried and true round, and ammo around these parts is easy to come by. From what I have seen online, building an AR 15 is cake (done it a few times) but I can't find parts for an AR 10 platform to save my life... I think I am going to tell him to buy one off the shelf and upgrade it if he wants... I don't think it's going to be worth messing with.
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« Reply #13 on: December 21, 2011, 01:08:47 PM »

Their are two flavors of AR-10, DPMS and Armalite.  here are some links for parts.


Lower, DPMS style   https://www.tacticalmachining.com/tm-10-lower-receiver-stripped.html

complete upper in .308

http://www.cheaperthandirt.com/2DP308BAOC-1.html
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