My negative experience with a Kahr pistol is really straight forward in my opinion. The rotating cam pulls a tensioned firing pin back and then falls away through rotation to permit release. The owners manual dose not provide the owner with instructions how to dismantle or properly clean the top end.
The long and short of it is a customer came into my shop and set a CW 45 on the counter and it went off. Luckily no one was hit. After we cleaned out our underwear I inspected the firearm and questioned the owner to ascertain that derbies had collected in the firing pin channel and had hung up the firing pin. When he set it on my counter, the impact dislodged the firing pin permitting the AD. This is not the first time this has happened from what I have been told. Whether this information is true or false is irrelevant as any Kahr fire Arm will never be permitted even in the door of my business nor will I ever work on one ever again. The potentiality for a tragedy is ever present with this flawed design from Kahr in my book. The close tolerance of metal against metal in the firing pin channel by Justin Moon was not properly thought out by him.
Glock was very intelligent to address this in a striker design pistol with a nickle against polymer self lubrication bearing surface selection of materials. This is also a potential problem with the Springfield XD as well as they use metal against metal. Over time friction is going to cause metal shavings and debris collection as well as carbon which is very hard in molecular structure.
Simply stated debris in striker channels is a potential problem for hang fire and hung tensioned firing pins that can come free at a later time causing an AD.
Whether the Karh owners accept this or not is up to them as it does negatively impact their ownership pride and ego. My opinion is just that my opinion and that is Kahr firearms are very poorly designed and very dangerous to own and shoot. This is even befoe I get to the MIM parts usage the even further degrades their quality.