I had a half a can of Plasti-Dip
in my garage and got to thinking about what I could use it on. I ended up using it on my P-Mags.
I just sprayed the bottom portion of the mags, not the top that actually goes into the magwell. It worked out pretty good. I maintained the flat black look and added a tacky rubber grip to them. I would post pics, but honestly, they look like regular old P-Mags. I ended up using roughly 2 coats on each mag.
For those who may not know what Plasti-DIp is, it's just an aerosol rubber type paint. Very grippy and sticky, at least, moreso than a factory P-Mag.
Windowed P-Mags? Not a problem. Just paint right over the window and you can peel it off then it dries. I just rolled my finger back and forth like I was drying out a booger I just excavated from my nose. It balls up and comes off with no residue. As a matter of fact, you can actually take it all off your mags if you don't like it. It's pretty durable, but once you start peeling it off, it comes off quite easily.
Might be something somebody would wanna try. Just thought I'd post it here to let you all know.
Here's a YouTube vid of how easily Plasti-Dip comes off of a car wheel. It gives you an idea of what this stuff is made of.
I used it on some of my aluminum mags. I have used it on car parts mostly.
I tried some bedliner, but it didn't work out too well. Might give this a go.