yes they sent me a new sight but still a very loose fit on my slide. The fix for me was to use craftsman auto feeler gauges , the set that contains the brass along with the steel. For my slide I selected a brass one[easy to cut with scissors] that measured .009 inches or .2 mm thick, cut to width of slot and apx. 70 percent in length of cut out in slide. Push the shim in till it stops, and slide in the front sight base over the top of the shim to get it started, then tap the front of the sight into place with a brass punch and hammer. this is now a very tight fit. I also used locktite red to get into any space around the top and underside of the slide, but the shim makes for a really tight fit, and I think that the red is not doing much. The flat shim does not get in the way of the screw in bbl bushing.
Regards,
GG300