You can always take it off if you sell the rifle, then no confusion.
Printable View
I do this kind of thing for the US Army all the time. Use two sheets of plexiglass (perspex) and a piece of thick matte board the same thickness as the disc. Carefully cut out a circle in the middle of the matte board the same circumference as the disc (use the disc as a template). Place the disc in this circle. Glue whatever information text you want to add on both sides of the matte board. Drill 4 holes in each corner of the plexiglass and sandwich the matte board with the disc between the plexiglass and fasten the entire thing with 4 short screws (I use brass, they look nicer). You can fabricate a base with a nice piece of wood rebated to accept the bottom edge of the display- push it in and you're done. You can see both sides of the disc and the associated information by just turning the display around.
That's a good idea P'14. I'll try it sometime. I've got something ready for just such an idea...........