I added a few minor things to my PM9 just for my personal preference. First I ordered a couple of metal magazine followers from Lakeline. Ran a few hundred rounds through the gun and it ran flawlessly. Used both magazines and no problems. I also added the Talon grips. For me they make a difference in the grip, plus they are pretty inexpensive and easy to install. Lastly I ordered the XS Big Dot sights. That makes the biggest difference to the gun for me. Very easy to get back on target and just an improvement on the factory sights. It's s tough choice between this and my Glock 43. The Kahr shades it with having a better trigger IMO.