Attach are a couple pictures of a retractable front sight that are the incredible workmanship of Tom Burgess. He did make more then one of these but I have no idea how many. I am very interested in understanding some of the finer details of its construction and assembly. If there is anyone who has actually had the please of examining one or better yet owning one and would like to share what you know please contact me with a PM and we can discuss.
[Linked Image from i.imgur.com]
[Linked Image from i.imgur.com]