Here's an idea of what I'm talking about.
Left side is an all factory stock Glock 21sf modifications. You can see the trigger shoe safety is a straight line and when fully depressed leaves a bit of material protruding. This is what causes that "sting".
Right side is my Glock 17. All factory stock, but it has the minus connector swapped into it, plus the trigger shoe safety modification.
You can see it has a crude radius and when depressed, matches the radius of the trigger shoe itself.
I've put between 4-5k rounds through the gun with this and never once have I have an issue with the trigger shoe safety not depressing fully and causing the trigger to lock up.
I do this because it gives me a "flatter" faced trigger and I find gives me a much nicer pull, without the 200 dollar expense of an agency Arms trigger shoe or something else similar.
I like to keep my Glocks as stock as possible, with as little modifications as possible. I'll only do something I deem necessary, that improves function without limiting reliability.
FoxAlpha if you file that part down will it not reduce the safety feature for the part or not? For IDPA competitors that would remove you from both SSP and ESP Divisions by rule.
Take Care
Bob
Would it remove the safety feature? No, if you removed too much material it would not depress the safety enough and wouldn't allow the trigger to be pulled. In essence, if you bubba the job you're going to lock your gun up and need to buy a new trigger.
As for competitiors in IDPA, etc, I can't comment as I'm not one of them. I'm sure someone with experience in that field can chime in.
If you're weary, or have the fine motor skills of a walrus, I'd recommend an aftermarket trigger then. Zev makes some really nice ones.