Author Topic: AR Upper and Lower compatability  (Read 580 times)

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Offline 264fan

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AR Upper and Lower compatability
« on: October 30, 2010, 06:45:41 PM »
Will a .243 or .308 complete upper work on a .223 lower or do they require a larger lower?

Offline jmayton

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Re: AR Upper and Lower compatability
« Reply #1 on: November 01, 2010, 05:01:56 AM »
All of the .308 based cartridges require an AR10 (larger)  lower.  You can get the 6.8spc, 6.5 Grendel, 50 Beowulf and a few others in the AR15 platform. 

Offline SHOOTALL

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Re: AR Upper and Lower compatability
« Reply #2 on: November 04, 2010, 03:05:05 AM »
Remington has an AR-15 in 30 cal. that some say it mesures up to the 308. I don't know myself just passing it along. I think if you look up Remington 30 RAR or R-15 you will find it.
If ya can see it ya can hit it !