It may not seem like it does much, but it does what I need. This extension allows me to use the mag release, without having to shift my grip, and do it with the pad of my finger instead of just the tip. Installation was simple, and the button is a perfect fit in my IWI lower. Just pay attention when you install the button, or you'll do it twice. The little nubs go UP, and fit into the recess in the bottom of the paddle. This helps position it, so getting the screws started is easier. I'm glad I got it, and I'm putting one on all my other rifles. Be sure to put this on *BEFORE* you put your B.A.D. Lever [MAG980] on.