Best module yet (out of four!) - Polymer80 PF320 PTEX Handgun Grip Modules

Personally, I feel the standard grip module on the P320 is really lacking, so I began trying out all the options. The factory grip is too round, and doesn't really lock in to your grip under recoil. Sig's X-five is better, should have probably been the standard grip honestly. Still, for me it's not *quite* right. Also it's not compatible with older mags, which is bewildering.
I tried the Wilson, which seemed nice enough. The backstrap is way too narrow unfortunately, lots of twisting under recoil. In my experience the more tapered and contoured a handgun grip, the worse it performs when actually shooting. Square-ish grips always help me lock in under recoil, preventing rotation or excess flip. Which is much more important to me than feeling 'ergonomic'.
I say all this cause this grip is very square-ish, which may not feel as great just handling it, but finally kept my P320 on target for easy follow ups with my 357 slide. The texture is just right as well, and the picatinny rail is spot on. This module is exactly how I like my grips on a traditional handgun. It does come with an extended mag release, however be warned it's a proprietary design.
I've had zero issues, and as a bonus, this module DOES accept 'gen 1' P320/250 magazines! Such a well thought out piece, buy with full confidence.