Depends on hand size - Kel-Tec Grip Extension For PF9 Magazine

3-stars for this grip extension personally, because I have large hands (not medium, not X-Large). I find that my pinky finger scrapes on the bottom edge of this extension, which has a rough plastic texture and is annoying. Or, I have to jamb my pinky within the extension. I will have to sand and polish it to fit me better. Without the extension, my pinky is completely off the pistol's grip, if that gives a relative sizing comparison.

I can place my pinky underneath the grip to get a better purchase, but that feels un-natural. As I grab the weapon, my pinky instinctively goes right to the bottom edge of the grip, so I have to either tuck it in, or tuck it under. Thus there is a slight pause to find the best grip for me. So for me this extension isn't the best option. I find that the +1 round extension magazine fits my pinky perfectly, and of course you get another round. If you have smaller hands, this would work well like most grip extensions, and I love them in general. Thus I recommend. I guess I am like the ugly step-sister though, who could not fit into Cinderella's glass slipper.

I suppose in a pinch I wouldn't worry about the feel if I needed to use the weapon, and I get a good trigger pull, even if annoyed by the extension. At least it provides a place for the pinky. Range time however might be a little uncomfortable with this small "jumpy" pistol, and having to figure where to hold that pinky. I may even remove and give them away to someone who fits this better, or just use the +1 mags with flat pinky front-face exclusively. At least these didn't break the bank, so you decide what works for you. Or, maybe they will fit my 1911, Kahr or other single stack mags better, the fit is close...