I got my S12 from Lars (Umlaut Industries). His shop is in the same building as my shop, so I had to stop by one day and check it out. I had a lengthy conversation with him about the S12 and ordered one the same day. He seems like a good guy, and he got me a great price on a stock S12. I don't think you will have any issues, with the converted S12, or anything you order from him. I plan on ordering another rifle from him just as soon as I can afford it.