Excellent! Although I wish they had chosen the Gen 2 to copy as I dont care for the Gen 3 grip.
PSA must be doing pretty well to have the $ to invest in the tooling.
DLA,
The grip isn't an exact copy of he Gen 3. It only has one finger bump and of course much better texturing.
Polymer 80 does something similar with their line of frames (which contrary to the above video do have steel rails) where they go with more of a 1911 style grip.