I have a Surefire P101 on my Glock 30 and it is huge! The rail adapter extends way beyond the front of my Glock 30. It works though, so I shouldn't complain. I am looking for a light that is smaller and light weight for my Glock 30. The Glcok 30 has no rails so this is a bit of a problem. I have been told that the Surefire X200 is able to be mounted on a gun with no rails. Is this true? Does Glock have any future plans to make a tactical light for the Glocks that don't have rails?