ALEXANDRIA, Va., July 16 -- United States Patent no. 12,359,884, issued on July 15.

"Caliber select magazine system" was invented by Michael A. Hebert (Kalispell, Mont.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A firearm comprises a frame defining a magazine well configured to receive a first magazine type configured to receive a first cartridge caliber and to receive a second magazine type configured to receive a different second cartridge caliber. It has a magazine retention latch connected to the frame, and the latch is configured to admit and retain a magazine of the first type and to deny admission and retention of a magazine of the second type."

The patent was filed on Sept. 15, 2023, under Appli...