K&S didn't impress me. He charged 125 bucks to mount some iron sights on a mauser barrel. I supplied the sights and screws, he just drilled and tapped four holes. It took a month to get it done. He would not give me a price before hand, just a ballpark figure of 80 -100 verbally. Then when I pick it up, he says 125- cash only, no receipts are issued. This was from the owner (Karl I think, german accent). Smells Fishy as hell, I will never go back.