Glock Slide Serration Sanding Guide (standard rear serrations)

I restored a badly mistreated airsoft Glock slide and wanted to get the rear serrations pretty again (see pictures for before/after), so I designed this sanding guide.

Schould be real-spec (7 3mm wide serrations with a distance of 2mm each), so it should also work on real slides.

Uses thin slices of standard sanding paper.
I only sanded the serrations to 300grit while I polished the rest of the slide to mirror finish to give it some contrast, and I´m really pleased with the result.
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