My MK9 has ser# GA18xx. I ordered wood grips from Kahr and got them today. The holes line up perfect. The bottom screw didn't quite reach the frame so I took off about 2-3 thousandths on the inside of the grip where the bottom screw hole is. They fit great. The magazine drops great. The factory screws work fine. I'm very happy I decided to order the wood grips even though Kahr said They wouldn't fit my MK9. Your mileage may very