Stippling the gripping surface of polymer-framed guns is usually done with a soldering iron.
Talon Tip - aggressive stippling texture – OTDefense LLC
GT-5000 (3 Strips) Grip Tape for Guns, Cell Phones
Stippling - Firearms Performance Enhancements LLC
Yes Even You Can Do It! - American Handgunner
Pistol Frame Stippling (Polymer Frames Only): MGW
OT Defense: Firearm Stippling Kit
How to Stipple a GLOCK Pistol (or Any Polymer Handgun) - The Truth
Is Stippling your Firearm Worth It? My Thoughts on DIY Stippling
Gun Stippling Tips and Techniques
Generally do you stipple or grip tape? : r/handguns
Stippling - Midwest City - Blue Haven Firearms
How to Stipple a GLOCK Pistol (or Any Polymer Handgun) - The Truth
Transformations: A Guide to Stippling Airsoft Pistols - Airsoft GI
Laser Stippling – Accurate Arms USA
Stippling Handgun Grips - Glock G43