Moveable Rifle Rest

I find that I lean things against the edge my basement work bench (boat paddles, pellet rifles, curtain rods, florescent light bulbs, etc..) constantly. They are always an accident waiting to happen and after knocking a rifle over and screwing up a scope mount last weekend, I decided to do something about it. I designed a movable rifle rest that can slide in the t-track on the edge of my bench so it can be positioned anywhere I need it, out of the way, or taken off completely with the flick of