Phil White reviewed the Remington R51 a few weeks ago and I don’t want to repeat what he said but I will say it is a slick looking gun. Here are photos I took of it at SHOT Show today, including the Crimson Trace laser grips and the threaded model with a AAC suppressor.
While personally I am not a fan of grip safeties in general, this grip safety is not at all “spongy” and has a satisfying feeling when it clicks into place as you grip it.