I received my Universal sight tool for B&J Machine and it is the best thing since sliced bread. I literally had the stubborn sights off my Kahr K40 within 5 minutes of opening the packaging I received from MidwayUSA. You just stick your slide in, clamp it down, and then turn the mechanism with the alan wrench and it pushes the sights right out like they were greased. So much easier than a punch and hammer. It makes minor adjustments once you put them back in a snap too. You can just take it to the range with you and do the adjustments right there.