ALEXANDRIA, Va., April 21 -- United States Patent no. 12,607,426, issued on April 21, was assigned to Savage Arms Inc. (Westfield, Mass.).

"Semi-automatic shotgun and components thereof" was invented by Aaron K. Alexander (Westfield, Mass.) and John Linscott (Easthampton, Mass.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semiautomatic shotgun comprising a receiver, a barrel, a forward gas block assembly attached to the barrel, a slider assembly rearward of the gas block assembly extending into the receiver. Upon firing a shotshell the explosive gases in the barrel are diverted through two ports into the gas block assembly, specifically into a pair of lateral pressure relief valves positioned on both sid...