It's unconventional (unless you have Tavor experience) but I like the RDB mag release.
I hadn't heard about any plans for a button styled magazine release, and I strongly doubt that Kel-Tec would do both, but they will be shipping the sweet looking RDB-C for California and other places that don't like scary pistol grips. Apparently, without the pistol grip, the RDB-C won't require a bullet button for the mag release, at least this week, until Sacramento gets around to a few more infringements. Don't quote me on that. I try not to fill my head with California gun laws. I feel that putting such nonsense in my head would inevitably make me dumber.