This is another version that is more to the side. This one has the advantage of being out of the way of the slide so that you can remove the slide for cleaning without having to remove the optics. Also on scope mounts that go over the slide there is some danger of getting something caught between the racking slide and the mount bridge causing potential damage.

http://i1055.photobucket.com/albums/...s/P1000553.jpg

http://i1055.photobucket.com/albums/...s/P1000538.jpg

http://i1055.photobucket.com/albums/.../P10005471.jpg