ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,449,221, issued on Oct. 21, was assigned to CESKA ZBROJOVKA A.S. (Uhersky Brod, Czech Republic).
"Assembly of a receiver with a barrel" was invented by Jaroslav Malina (Uherske Hradiste, Czech Republic).
According to the abstract* released by the U.S. Patent & Trademark Office: "An assembly of a receiver (1) with a barrel (4) wherein the barrel (4) is inserted into a barrel hole (7) in the receiver (1) and is attached in a replaceable manner by means of a clamping connection that comprises a longitudinal slot (2) that longitudinally divides the receiver (1) wall in the insertion location of the barrel (4). In the location of the longitudinal slot (2) at least two transversal screws (...