Print-in-place on most printers at just about any layer height. The longer rail version is for glocks/single rail pistols to secure the rear tabs of the Thorfire to the trigger guard of the pistol.

Uses whatever length M4 bolts over 28mm that you want.

Conveniently, the light will hold at the same height as the front sight from this: https://www.thingiverse.com/thing:3778683

So if you wanted, you could mount one of the sights in front of it and remix a "light stencil" to send a message to your fellow airsofters who are about to have to walk back to spawn.