Aside from the exciting newly textured grip, the only really interesting part to me about the Gen4 glocks is the new recoil assembly. Curious on the 9mm glocks (G17 is only Gen4 9mm out) how is rates compared to the Gen3 in felt recoil, follow up shots, etc. Can't decide if this new assembly is a good thing or bad thing. On one hand it's a new and central component to weapon reliability ... I wonder if it will have kinks that need to be worked out. After all - the Gen3 recoil assembly has worked fine all these years for 9mm glocks. Any input from members here?