Ya, I have one, but it was alot of work. If I was going to do it again I'd probably just buy a Magnum Research. w w w.magnumresearch.com/Browse.asp?Category=MagnumLite:Rifles
It is do-able if you have alot of patience. I already had an extra barrel and magazines for my factory 10/22 magnum, so the initial cost for me to build one was cheap. All I would have been out, if I couldn't get it to work, was the hogue stock that I modified.