308 on AR Platform?
Not a sixgun but thought it was a good place to ask. Is there anyone out there that makes a upper in 308 that fits a standard AR-15 lower? A few guys asked me at work this week and AR's are not my thing, I have one but that is all I will ever know about them. I did a quick measurement and looks like OAL length for the 308 is too much. I told them they would have to go with a bigger lower like a Armlite,Rock River etc that will accept a larger OAL cartridge.
this requires an AR10 or SR25
by bj 
, Saturday, January 21, 2012, 23:01 (4638 days ago) @ woody
You can of course get AR15 uppers that shoot 7.62x39 and .300 Whisper (really .308 diameter).
Colt is getting ready to release a 308/5.56 switch unit
by Rob Leahy 
, Prescott, Arizona, Saturday, January 21, 2012, 23:50 (4638 days ago) @ woody
edited by Rob Leahy, Sunday, January 22, 2012, 11:16
But as noted the 308/7.62x51 is not compatible with the little AR-15 actions. If you want a superior 308 Auto rifle get a DSA made FN/FAL.
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