I have been on Google trying to figure this out. Maybe someone here can make it clear for me. I have a sks rechambered in 6.5 Grendel. Can I instal a hical ar mag adapter and run 10 Rd 7.62x39 pistol mags? Can I put the 6.5 Grendel rounds in the 7.62x39 magazine and run it legally? Thanks guys