Lacking any proper brass drifts at the time, I moved my own front sight using a ground down brass bolt and ball pein hammer. The sight had been installed slightly off to the right. Just within the past couple weeks, however, I saw a kit of six brass drifts in varying sizes with a small hammer at a local Gander Mountain store. Packed in a wooden case, I believe the price was 17 or 18 bucks.YukonGlocker said:I have been using a drift punch with excellent results. I have not seen a sight pusher specifically made for the M&P yet.