I bought this at the beginning of the year from Physicsguy, but have since acquired different equipment. I'm offering here first for what I paid him for it. No, I don't know much about it. I never set it up to use it. See other thread for a more detailed response on questions. Here is his original post. http://www.northwestfirearms.com/forum/showthread.php?t=2493 You get exactly what I got, pix below.