TALON Grips makes very nice stick-on grips for many handguns. I have a TALON Grip on my Ruger LCP II and it increases the “grippage”. (Grippage is a word that my younger daughter Laura made up years ago when she was talking about her sneakers.) In my opinion, it helps the controllability of small handguns.
My TALON Grip is what they call the granulate texture. It is not just rubbery but also pebbly. I don’t know if those are real words but it does increase the grippage.
TALON has now expanded to slides with their acquisition of ArachniGRIP.
Their release below explains the acquisition and how ArachniGRIP helps make manipulation of the handgun slide easier.