[9x45]

I've done hundreds of sight installs and the Gen 4 and newer Glocks seem to have larger slots. I don't remember this issue on the early guns, in fact you had to tap them in with a small gunsmith hammer. I sock them down, using Permatex # 2, as a thread filler, then use a small crescent to center them by using a 6" scale and check against the firing pin line up on each side. Never had any come loose using Permatex. And they are removable.

 

[9x45]

If the sights are centered, then that's a grip issue. The typical low left that plagues newbies.

 

[9x45]

You get the gold medal for not reading the first post of the thread.

No, I get the gold medal for tying it wrong. If you have to have the rear pushed all the way to the right to center it, then that's a grip issue.

 

[9x45]

Glock front sight slots have been getting looser and looser over the last 15 years or so. Used to be you could tap in a new sight, Dawsons, Heinies, Tarans. But today, they are almost never tight. Having installed over 200 sets on Glocks, I can remember a tap in other than the early 90's Glocks.