ALEXANDRIA, Va., March 24 -- United States Patent no. 12,584,701, issued on March 24.
"Roller and bearing delayed firearm operating systems" was invented by James Matthew Underwood (Kennesaw, Ga.) and Larry Cullen Underwood (Canton, Ga.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A firearm operating system includes a forward bolt with an internal cavity, a carrier disposed on a rear side of the forward bolt where the carrier includes a cavity, a short cam pin, a plurality of bearings, a retracted configuration, and a deployed configuration. At least a portion of a forward section of the short cam pin is disposed within the internal cavity of the forward bolt. At least a portion of a rear section of the sh...