G22 frame, custom min spec chamber barrel, Timney trigger and Williams adjustable fire sights. Frame square.
Shoots ragged holes at 25 yards. 40S&W that will take the hottest loads safely.

Sounds like you've made yet another great Glock. Making Glock Perfection much more perfect.

What did you mean by "Frame square" and how do you find the Timney trigger?

The frame relation to the slide is controlled by the slide guides on the frame. While these leave the factory good enough to function most Glocks wont shoot better than 3" and more like 4 1/2" at 25 yards. Fine for fighting or defensive use but if you are trying to cut the aorta off a deer heart at 40 yards not the perfect scenario. The first step to making one shoot bugholes is making sure that the guides are all on the same plane. If you are not very familiar with this step don't attempt it. It is easy enough to check with a piece of glass by removing the slide and placing the frame rails against the glass. if it wobbles more than .008" it isn't going to be a bug hole shooter. The way you check it is with a feller gauge under one of the guides if it rocks.

Midwayusa has the Timney triggers in stock most of the time.

Very cool, I love the .40 and have loaded it pretty stout...180s @ 1200 from a G23 using a stock length KKM barrel. I have a G22 Gen5 with the heavier slide that is a tack driver, certainly good enough for woods work. I like that you've really chased after accuracy here.

Old Post, but interesting.
I am surprised that you are not running one of the new Carry Optics sights such as a Holosun 507C on it.
I was not a carry optic fan for a very long time. The sights have really improved over the last few years. While I do not have one YET on my G37-4, I probably will have in the next year.

Bob R

I am running an RMR on one of my .357 Sig custom Glocks. I actually intended this one to stay open sighted but with good sights. The fire sights are actually quite good.