I have chased this rabbit round the hole. I bought a stainless range officer. I put on a smith and Alexander mag well, bulletproof extractor and cylinder and slide trigger although the factory trigger was pretty good. The problem was the gun wouldn’t group very well by my standard. Horrible actually. Springfield’s accepted accuracy translates into you better be a steady shot if you want to be zero down at 20 yards. Some people report great accuracy others not so.much. So I had a kart barrel installed. It has always been very reliable. If I had to do it again...dw pointman or valor and Ed Brown snakeskin magwell. Done. If you shop for it you can find the pm9 for pretty reasonable prices (gun watcher is your friend)