Kahr Arms have filed a patent infringement lawsuit against Diamondback Firearms, makers of the DB380 and DB9 sub-compact pistols. From the press release …

Kahr Arms, the award-winning manufacturer of compact pistols based in Worcester, Mass, is currently engaged in a patent infringement lawsuit against Diamondback Firearms, LLC, the maker of compact .380 ACP and 9mm pistols based in Cocoa, Florida.

Seven U.S. patents cover Kahr’s unique locking, firing and extraction systems. The incomparable 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 unbelievably smooth double action only trigger stroke, fast to fire in critical defensive situations.

Diamondback DB9