Two-piece locking block device

A locking block device (100) formed in the region of a cartridge chamber (121) of a handgun barrel (120) and comprising:

• a locking block (110) for the purpose of releasably firmly connecting the handgun barrel (120) to a breech prior to firing the handgun, and comprising:
• a control member (111) having a control guide (112) for the purpose of swinging out the handgun barrel (120) after the handgun has been fired, for the purpose of separating the handgun barrel (120) from the breech;
• and
• a ramp member (150) comprising:
• a feed ramp (140) formed on the ramp member in a region of a stop member (130) of the locking block (110) for the purpose of feeding a cartridge stored in a magazine of the handgun into the cartridge chamber (121) of the handgun barrel (120) following ejection of a fired cartridge
• characterized in that:
• said ramp member (150) is releasably locked to said locking block (110);
• said cartridge chamber (121) of said handgun barrel (120) is provided with an external screw thread (122) and said locking block (110) has a bore (113) exhibiting an internal screw thread (114) that is complementary to said external screw thread (122) on said cartridge chamber such that said locking block (110) is capable of being firmly screwed onto said handgun barrel (120);
• and
• the handgun barrel (120) is provided with a flange (123) in the region of its end remote from the muzzle, which flange forms a latching device for a screwed on locking block (110), a peripheral groove (124) being provided between said external screw thread (122) of said cartridge chamber and said flange (123).