AK mags in your AR-15? Sweet! The new Rock River Arms LAR-47 comes in 7.62×39 and the lower receivers are made to work with AK mags. They offer a OEM and quad-rail options.
RRA’s catch phrase of: “Left made right!” seems pretty appropriate for their new left hand rifles. Obviously it ejects out the left side but they’ve gone so far as to rifle their barrels in the opposite direction too. The forward assist is on the left side as are the bolt catch and safety selector. The magazine release and charging handle are ambidextrous.
I asked Steve Mayer if they planned to offer upper assemblies or stripped receivers and he said: “No, these are dedicated left hand rifles, the uppers will not work on a standard lower.”
About the only thing I would consider changing is replacing the charging handle with a better ambi one like the TacOps-1.