The Kahr PM9 is a 9mm, sub-compact pistol. Sub-compact means it is much smaller than a full size or duty gun.The Kahr PM9 easily fits in a normal size hand. This is an intentional design by Kahr Arms to fulfill the requirements of its founder, Mr Moon. Also on Mr. Moon’s requirement list was a caliber that was powerful enough to be used reliably for self defense.
We won’t get into the caliber wars here, but 9mm has been around for a long time, and many many militaries and police departments around the world today field side arms chambered in 9mm.
The “P” in PM9 stands for polymer. For those that don’t know, polymer is the material that the frame of most modern handguns are made of.
The use of polymer was made popular by the likes of Gaston Glock in the 1980’s with his Glock 17 design.At the time polymer was by no means a new material, but using it in place of a traditional steel or alloy metal frame on a firearm was.
While polymer framed guns are all the rage, they still require steel rails or guides set into the polymer to prevent wear of the slide on the polymer itself.
Kahr also makes a steel frame counterpart to the PM9, the MK9. While there are some differences, the overall design and function remain the same.