ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,164, issued on April 29, was assigned to ZEV Technologies LLC (Oxnard, Calif.).

"Modular handgun" was invented by Alec Daniel Wolf (Westlake Village, Calif.) and Gene Anthony Velasquez (Fort Lauderdale, Fla.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A modular handgun system comprises an elongated universal trigger frame having a pair of slide rails and an accessory rail. The trigger frame is adapted to have a trigger assembly mounted thereto. The system further comprises a grip frame having an elongated channel and a hand grip extending downwardly from the elongated channel. The trigger frame is removably mounted in the elongated channel of the ...