First: I love this grip, but I love it's bigger K2 version more.

Second: I enjoy a shorter length of pull, that this was designed for.

Thirdly: It is small feeling. My hands are about 8" long, and 4" wide, the grip works and I have not had any trouble with it, others have mentioned reloading leverage trouble, I wonder what their length of pull was, that might make a difference if the hand is far out. I haven't used it on a pistol, no problems for me. If your hands are bigger than mine then I'd recommend the K2, if smaller, then maybe the K will work. (It really is small).

Let me preface this by saying that this grip is VERY small. If you have average to larger hands, this grip can very easily be too small and uncomfortable for you. I personally have very small hands, so this grip is a perfect fit for me. I originally bought a Gunfighter mod 0, but I found that it was still just a tad too large for my hands. For children, women, and guys like me with tiny hands, this is a great grip to consider. Also note, the fit on the one I tried is very tight!

I purchased the FDE colored version. The ears on the outer corners of the groove to fit the lower receiver is too narrow. They are slightly bent inward due to poor molding processing. They probably ejected the part too soon from molds so the part distorted upon cooling. The groove is .348" wide and the lower receiver grip rib is .367" wide . I can file and machine it to fit but other cheaper brands can be used out of the box. Having to finish a Magpul product costing more is a big disappointment.

OK I know everyone is crying about its size but it truly is a great grip. I like that its small and that it fits nice and tight for installation. My hands are medium to large size and I like that I can get my hand around it like my pistols. The more surface area my hand covers all around the grip the better I shoot. All in all I think this grip is fine for all shooters.

As the others stated, it was too small for my liking. It was well made and the grip angle was what i wanted. But the smaller size made me return it. And I reinstalled my MIAD on the rifle. Sorry Magpul, but a little more research would have discovered this. Just look at the reviews on here. It would most likely work great if I had a small hand though.

I use a lot of Magpul products. I think they make stuff that is good in concept and in functionality. I feel the K-Grip has the concept side but falls flat on the functionality side. It feels like a rushed product that didn't see enough testers.

The grip is too short too narrow and all around too small. I am a very average sized guy and the grip while off the gun felt a little on the small end but do-able; as soon as it was on the gun it was clear it was NOT do-able considering my pinky was hanging off the bottom of the grip. This would probably make a great grip for my wife.

Love Magpul stuff, just not this.

This grip is definitely slimmer than others from Magpul, but is equally well made. It fits very well on the receiver, and feels solid. As a point of reference, I have found that it very similar in size and angle to Kahr's standard polymer framed pistols, such as the CW9.

I am a Magpul advocate but not for this one, the MOE K Grip.
The K Grip is so slim and short it destabilizes the hold on the weapon and tires out the firing hand.
I made a test with a Magpul MIAD grip and a K Grip on two different rifles. Immediate negative difference with the K Grip. Had others test it at the range. Same experience.
After picking up the rifle with the K-Grip a few times over the course of the day, one started to feel the weight unbalance going to the wrist. Nothing one wants if one is carrying all day.
I have medium size hands and this grip was way too small.
Even the good old standard M4 grip is preferable over the K Grip.
The advertised steeper grip angle does not come through at all. No enhancement when gripping, holding or aiming.
No closeable compartment in the grip, which is nice on the MOE/MIAD and the standard rubber grip plugs are too big for teh K-Grip. So you're back to an oldfashioned open end grip.
MOE K Grip is nothing anyone needs and most certainly not on a PDW.
Disappointing product from Magpul.

The MOE-K grip is Magpul's smallest grip for the AR. While the exterior outline and reduced angle feature of the grip is sensible, the thickness of the grip makes it less ergonomic for my personal preference. The incorporation of a palm swell on both sides of the grip will definitely enchance its user friendliness overall.

I bought this grip to try it out and I put it on a 870 SBS with a mesa tactical kit. It feels great but to me its a little short. If they extended it just 1/4" or 3/8" it would be much better. It also gives you the HK plastic lower feel which I like. I will definitely buy another for my SBR im building.