Patent ID: 11879699
Assignee: GLOCK TECHNOLOGY GMBH
Field: Other special machines (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 0:
1. A barrel for a firearm; wherein
the barrel defines a bore axis;
the barrel defines a cartridge chamber; and
the barrel defines an integrally-formed locking sleeve including a locking space, the locking sleeve including a plurality of inwardly extending locking lugs that are integrally formed with the barrel, and the locking sleeve defining a plurality of recesses configured to receive bolt head lugs of a bolt head to be introduced into the locking sleeve, the plurality of recesses forming grooves for a bayonet-type coupling between the locking sleeve and the bolt head;
wherein at least two centering ramps are formed in a transition area between the recesses for receiving the bolt head lugs and the locking space, the centering ramps extending in a direction towards the cartridge chamber in an oblique manner with respect to the bore axis, such that the centering ramps are configured to guide the bolt head in a centering manner when the bolt head is introduced into the locking space of the locking sleeve; and
wherein the recesses forming the grooves for the bayonet-type coupling between the locking sleeve and the bolt head, when viewed in the direction of the bore axis, each exhibit a profile that includes an elliptical segment.