I bought 2 P220s, a P220R, a P229, a P226 (stainless slide) and a P226 (carbon steel slide). I have traded all but the P220R and the P226 (carbon steel). I would not hesitate to buy a used sig from them. I have always bought the very good to excellent graded units. Thier pistols are (in the grades I purchases) almost as good as a CPO just a little paint wear on the frame rails and some dirt. Oh, and one less mag. CDNN is the best deal going for a used Sig. If you are really worried about condition sometime you can pay $20 extra for a hand selected unit (as a rep put it "the pick of the litter") but, I never had and doubt I ever would. The units I have recieved from CDNN are as good as some but, better than most used units at my local shops. However, I would reccomend that you not buy from them. That way there are more for me and thier prices might go down.