I received the Apex trigger and got it out to the range today. I decided to put it on my new G19 and fired off 350 rounds. It's nice, but nothing spectacular. I guess at this point, I like the feel slightly more than a G17 trigger shoe. You have a choice when buying: with or without gen3 trigger bar. I ordered without and regret it. It was quite difficult to push the pin on the shoe in through the trigger bar. You need to use a vice, but the instructions say push it in "subflush" and when I called they said finish getting it in with a 1/16 inch punch. I could not budge the pin with a punch, even after going to a heavy hammer. I bent my punch and flared its tip. I finally got it in by positioning the point of a short, stout nail over the pin while using my vice to press the pin home with the nail - the nail and shoe are in the vice, lined up , then tighten the vice. I had thoughts that I might also try this same shoe on my G43 - no way - that shoe isn't coming off it's current trigger bar. I have to say, the trigger does not fit perfectly in the gun. It takes a little finesse to get the slide stop lever in place. Then use your Glock tool as a guide to "lead" the trigger pin into place. The fun comes if you now try to disassemble the receiver - it is very difficult to get that trigger pin out again, it took me at least 10 minutes wiggling the slide stop lever before the pin was free. I'm on the fence about recommending it. If money isn't an issue and you can deal with the sticky spots I mentioned go ahead. If you are well satisfied with the OEM trigger shoe, don't bother. Maybe I'll grow to like this more, but so far it's just OK. Maybe the problems I had are due to my mediocre skills, or the particular trigger I received. I'd be interested to hear anyone else's experience.