Some of them are... It's the AR-10A. The regular AR-10 still uses their proprietary mags.markthenewf wrote:That being said, TAM is correct as well: AR10's are pretty tough as well. If I were doing it all over, I'd really just look into an Armalite AR10. It's an AR platform, so you can slap a lot of stuff on it (if you want) and the newer ones are also set up to take PMAGs.
(Really, why anyone would make a modern rifle that doesn't take PMAGs is beyond me, but I'm not a gun designer...)