I want to mount a holster under my home desk (aka a piece of plywood laid across two peds/file cabinets. I want a molded holster that holds the pistol firmly (HK P30L) not that it matters. It will be mounted permanently, mount/unmount doesn't enter into the equation. Thanks for the thoughts/input.

Some of these magnets designed for this are
not a bad idea. Usually sell at reasonable
prices.
Poli Viejo

What I did before was buy a kydex IWB holster with a metal clip and clipped it to a piece of nylon belt that I screwed into the bottom of a shelf.

A left handed IWB holster will work of you want it to mount on top of a surface rather than suspended underneath.

^^^^^That is what I did.

A sticky-backed velcro sheet on the desk and one on the holster will also work.

Or, what I'd do since I've already invested in the holster system, get a G-code RTI wheel and affix it to the desk and then just get an RTI holster, which you can easily remove from the desk and attach to something else (like your belt).

I haven't done that, but I have given it some thought, and one idea I had was to just get a pancake style holster and screw it to the underside of the desk through the belt slots, maybe using washers if necessary if the screw head is too narrow for the slot. Can't say how well that would work, though.

You may look at Safariland QLS system. This is what I used on my desk along with an ALS holster.

I use a gun magnet I bought from amazon

If it were me, I wouldn't bother with a holster. A holster requires the gun be withdrawn in the appropriate straight line. Subject to binding.

I'd take a piece of 1/2" thick wood. Then cut two or three strips of surgical elastic. Staple them to the board with a staple gun using chisel point staples. Shape it to accomodate the gun. Screw the board to the underside of the desk (or glue it).

The elastic will allow a lot of leeway when the gun is "drawn". Less likely to bind in a rush and you can control the tension. You could also put something between the grip and board to control the angle/standoff of the gun for a better "draw" angle.

I use the Blackhawk Serpa Quick Disconnect system. The female adapter will mount to any flat surface:

https://blackhawk.com/products...isconnect-system-kit




Link to original video: https://www.youtube.com/watch?v=WuPB4iRBIko