US 12,449,221 B2
Assembly of a receiver with a barrel
Jaroslav Malina, Uherske Hradiste (CZ)
Assigned to CESKA ZBROJOVKA A.S., Uhersky Brod (CZ)
Appl. No. 18/858,823
Filed by CESKA ZBROJOVKA A.S., Uhersky Brod (CZ)
PCT Filed Apr. 20, 2023, PCT No. PCT/CZ2023/000016
§ 371(c)(1), (2) Date Oct. 22, 2024,
PCT Pub. No. WO2023/222145, PCT Pub. Date Nov. 23, 2023.
Claims priority of application No. CZ2022-208 (CZ), filed on May 19, 2022.
Prior Publication US 2025/0277644 A1, Sep. 4, 2025
Int. Cl. F41A 21/48 (2006.01)
CPC F41A 21/487 (2013.01) [F41A 21/484 (2013.01); F41A 21/485 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An assembly of a receiver with a barrel, wherein the barrel is inserted into a barrel hole in the receiver and the barrel is attached in a replaceable manner by a clamping connection that comprises a longitudinal slot that longitudinally divides the receiver wall at the insertion location of the barrel and at least two transverse screws configured to pass through the receiver at the longitudinal slot, and a transverse hole extends into the receiver at the longitudinal slot and a transverse pin passes through the transverse hole in such a way that the transverse pin is received in a corresponding transverse recess in the barrel, the transverse pin having a threaded hole extending perpendicular to the longitudinal axis of the transverse pin and a connecting screw received in the threaded hole, wherein the connecting screw further passes through a straight-through hole in the receiver and through a stock/frame of the firearm to connect the receiver to the stock/frame of the firearm.