I just acquired one of these because it was mounted on a pistol that I bought. After using it for a couple of weeks and picking up bits and pieces of information about it I'm really starting to like it.
Can anyone give me some more information about this sight.

Originally marketed by Tasco. Now they are called the J-Point by JP Rifles. There are mounts available to stick them on about any weapon including a knife. The mounts are the same as the JPoint, and the Trijicon RMR.

Tough sights and they work well in my experience. I have one on a glock 21 in .460 rowland, and have the J-point on an AMT Lightening .22.

Jeremy