US Patent Issued to BROWNING on April 8 for "Firearm magazine with shoulder retention" (Utah Inventors)

ALEXANDRIA, Va., April 9 -- United States Patent no. 12,270,622, issued on April 8, was assigned to BROWNING (Morgan, Utah).

"Firearm magazine with shoulder retention" was invented by Robert G. Maughan (Kaysville, Utah) and Ryan D. Cook (Morgan, Utah).

According to the abstract* released by the U.S. Patent & Trademark Office: "An adjustable insert for a firearm magazine can include: a contact surface to contact a cartridge shoulder; and an engagement interface positioned on a mating surface, the engagement interface being engageable with a portion of the firearm magazine, wherein the mating surface is positioned perpendicular to the contact surface; and wherein the engagement interface includes a predetermined adjustment resolution for in...