ALEXANDRIA, Va., July 15 -- United States Patent no. 12,663,228, issued on June 23, was assigned to Magpul Industries Corp. (Austin, Texas).

"Ammunition magazine with asymmetric feeding" was invented by Nicholas Kielsmeier (Denver) and Libardo Jimenez (Arvada, Colo.).

According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure describes systems, methods, and apparatus for a magazine assembly for a firearm, the magazine assembly comprising: an elongated housing, a spring positioned in an interior of the housing, a first and second plate at a proximal end of the housing, at least one follower configured to support one or more cartridges and move or slide within the housing based on a compression and decompres...