These are awesome - Trijicon Heavy Duty Night Sights Yellow Front Outline Fits Glock 42 GL113-C-600784

I tried this set up on a G19 originally and liked having a different colored sight in front. I am not an expert but do enjoy USPSA and IDPA shooting, I know enough to know what I like and what is functional vs what is a fad. Having a different colored front sight helps me on shots that are less than 15 to 20 yards because you are just looking for the front sight (fundamentals need to be solid) and makes it quick and easy. For precision shooting it did not change anything. I like to train/compete with what I actually carry and absolutely love that Trijicon made the color contrasting sights.