The 4006 is a good, but heavy pistol. I had one with the adjustable sights and protective wings on each side of them. Mine was not a police trade-in, and was in excellent condition with box, documents, tools, and both factory magazines, and I had a very difficult time finding a buyer at my price range. Most dealers and/or gunshop owners wouldn't offer me more than $150.00-$200.00. I finally traded it with some $ for a nice Model 13 with a 3.0 inch barrel that had been on my grail gun list for many years. I have arthritis in both hands, and find that the polymer Sigma (40F) and M&P 40c are actually gentler on the hands than the all steel 4006 (I think this is due to the polymer frame flexing under recoil and absorbing some of the shock). I recall mine being accurate and reliable, but it was designed as a duty gun for the police, so it isn't easy to conceal.

Best of luck,

Dave