Disclaimer: I get NOTHING out of posting this link. Neither Nettac nor Larry Vickers knows that I'm doing this.
Glocks are kind of like AR15s. Very easily customized to your tastes/fit. From custom slide cover plates to the Glock based Lone Wolf Timberwolf, you can set your Glock up any way you want.
Myself, my Glocks get a 25 cent trigger job, my very favorite Warren Tactical Sights, a Vickers slide stop, a Vickers magazine catch, and a Glockmeister frame plug (contour of it helps in guiding the magazine in during reloads). I also grind the finger grooves off and contour the front corner/edge off of the triggerguard. It's my feeling that doing so reduces the likelihood that the square edge of the stock triggerguard could catch on clothing as I reholster. Always reholster slowly!
Here is how my current carry and training Gen4 G19 looks.
So, the whole point of this rambling post is to to draw your attention to this deal on a combo package of the Vickers Tactical Slide Stop and Magazine Catch from Nettac.com. These pieces are "Goldilocks" sized. Not too big, not to small. Contrasting the Glock OEM pieces, you have two choices: the factory and "extended" parts. In other words; too small or too big. Also, Larry took the time to change the shape and serrations on the slide stop to be more like that of the S&W M&P's slide stop.
I have and use these parts on all of my Glocks. I have literally thousands of rounds through my Glocks using these well thought out and moderately priced parts. They make it easier for me to operate the pistol and do not snag when carried nor at training classes. Can't recommend them enough. Grab'em for your Glock. You will notice the difference. For now, the magazine catch is only for the third generation Glocks. The slide stop will fit any Glock. It may require slight fitting. Mine did not.