Kahr Arms PM9, Striker Fired, Semi-automatic, Polymer Frame Pistol, Sub-Compact, 9MM, 3.1 Barrel, Blackened Stainless Finish, Night Sights, 7 Rounds, 3 Magazines, (1)-7 Rounds and (2)-6 Rounds PM90G94NA The PM9 matte stainless slide is blackened using an ultra hard and super thin coating. This coating has been used successfully in the knife industry to protect blades from corrosion and scratches.