If the sight is on there crooked, you can straighten it with a little crescent wrench or something before the locktite dries.
I wouldn’t send it anywhere. The front sight is way too simple of a thing to do. If you need a new front sight, call Rick at Ameriglo. He’ll do the best he can for you.
If the front sight really is crooked, one side of the sight will look fuzzy when you focus on the front sight when looking at the sight picture.
Any photos? A Glock front sight is way too easy of an install to snd off for the work. Any Glock armorer can do it with easy. Hell by the right sized driver and roll your own, so to speak.
The same thing happened to my Glock’s front sight. I had my gunsmith install a set of Ameriglo Hackathorn sights and I guess I didn’t wait for the loc-tite to set properly before I took it out. Anyways, it took about 4k rounds before it loosened up. I cleaned up it up a bit, put a new dab of loc-tite on and screwed it back in. Good as ever.