Oh, and someone mentioned the Keltec offering.
Not too bad lookin!! I like the OD green!!
The ONE thing George carried over from the P-30/P-31/R31 design to the PMR/RMR is the same lower is used on all three weapons.
Everything else is quite different.
I do suggest, that whether you get a Keltec or Grendel, you go to goldenloki.com and learn about how to tweak your weapon.
Its also great for making dang near every semi-auto weapon you will ever own MUCH more reliable.