[Stretchman]

http://www.santacruzgunlocks.com/setups/complete/916-1.html

Somebody was looking for the hinged shotgun lock in another post. I would have posted this there, but I can't find the original post. The funny thing is, I think I was the original poster. Could be msitaken.

[Robo_Railer]

There was a thread called "Door Jamb Shotgun Rack? (http://www.thehighroad.org/showthread.php?t=256206&highlight=door)" recently. He thought the model he saw was made so it attached to the hinges on a door jamb.
The one you linked to could probably be bolted to a door frame or any flat, solid surface. I'll point Talleymonster to this thread so he can see if it's what he had in mind.

[Stretchman]

Ok, cool. If you look, it has hinges on it. I thought maybe that's what he was referencing. Wasn't sure. Thanx.