Paint pens are extremely important and extremely versatile to a shooter. There are some surfaces, like smooth steel or black anodized aluminum, that a pen, pencil, or even a permanent marker like a Sharpie just won’t write on or at least won’t show well. When you come across a surface like that, only a paint pen will do.
Use your paint pen to:
- Mark magazines with numbers and distinctive marking patterns so you can identify problem magazines and identify your magazines in a crowd.
- Witness mark rear sights on handguns so you can tell if they have drifted or mark the center so you can easily swap rear sights.
- Witness mark every threaded fastener (screws, bolts, nuts, etc.) on your firearm that is crucial to proper function so you can tell if something needs to be tightened at a glance.
- Mark the location of various items like optics, lights, and vertical grips so that you can easily return them to the same locations should you need to remove them.
- Place a dab of paint onto screw threads to use it as a thread locker (like Loctite) in a pinch.
Numbering magazines and witness marking threaded fasteners are some of the habits of successful shooters. Those two tasks alone justify adding some paint pens to your toolbox.