Stippling the gripping surface of polymer-framed guns is usually done with a soldering iron.
Stippling Handgun Grips - Glock G43
Laser Stippling – Accurate Arms USA
Gun Stippling - Smith Outfitters
Gun Stippling Tips and Techniques
How to Stipple Your Handgun Grip - Handguns
Stipple Practice Frame - Glock – exoticgunworks
Is stippling worth it? : r/GlockMod
How to stipple a gun
Laser Stippling - SA Laser
GUNFIGHTER GRIP PACKAGE ON YOUR GLOCK
Stipple Diagram
TALON Grips vs Stippling – TALON Gun Grips
Gun Stippling Tips and Techniques