Kahr Arms’ presser informs us four years after the fact (in Internet time) that a jury in Florida found Diamondback Firearms guilty of patent infringement. “The lawsuit filed in 2011, states that Diamondback Firearms infringed upon the patent by using Kahr’s exclusive cocking cam trigger system into their own firearms. Currently, Kahr holds seven U.S. patents for their exclusive locking, firing, and extraction systems. The cocking cam trigger system employs a patented cam to both unlock the passive safety and complete cocking and releasing of the firing pin. The system provides a “safe cam action” and a smooth double action only trigger stroke [if they don’t say so themselves]. The cocking cam trigger system patent was granted to Kahr Arms founder Justin [the son also rises] Moon on April 2, 1996. This design is found on all Kahr firearms.” Including the five-star MK9.