I put a set of these on the Glock 19 New Years Day. Today I took it out for a shakedown cruise. These sights have got to be the best combat sight ever! Just put the HUGE front dot on top of where you want to hit and the rear sight just seems to find its own way into the proper place. At 7 yds, I was putting 15 rounds into a 4" circle as fast as I could pull the trigger.
These are not target sights, but I would enthusiastically recommend them for anyones carry gun.