Bolt head for a firearm
AssigneeGlock Technology Cmbh
InventorKarl MARKUT
Life of this patent
Estimating the term…
Abstract
Firearms and bolt carriers having a bolt head including a bolt head axis and a plurality of locking lugs, wherein at least two recesses having a radius, measured with respect to the bolt head axis, are formed on the bolt head between at least two adjacent locking lugs. To improve the guidance of the bolt head, at least two centering ramps, which are designed obliquely to the bolt head axis and protrude in the axial direction toward the rear up to a central radius that is greater than the radius, for self-centering the bolt head during the bolt process are formed in the region of the recesses.
Claims29
1-19. (canceled)
A bolt head for a firearm having a bolt head axis and a plurality of locking lugs, the bolt head defining at least two recesses between at least two adjacent locking lugs, the at least two recesses having a recess radius as measured with respect to the bolt head axis;
- wherein the bolt head defines at least two centering ramps formed in a region of the at least two recesses so that the centering ramps extend obliquely to the bolt head axis and extend in an axial direction toward a rear of the bolt head up to a central radius that is greater than the recess radius, such that the at least two centering ramps aid in a self-centering of the bolt head during a locking process.
A bolt carrier for a firearm, comprising:
- a bolt head having a bolt head axis, a plurality of locking lugs, and a cam pin;
- wherein
- the bolt head defines at least two recesses between at least two adjacent locking lugs, the at least two recesses having a recess radius as measured with respect to the bolt head axis;
- the bolt head defines at least two centering ramps formed in a region of the at least two recesses so that the centering ramps extend obliquely to the bolt head axis and extend in an axial direction toward a rear of the bolt head up to a central radius that is greater than the recess radius, such that the at least two centering ramps aid in a self-centering of the bolt head during a locking process;
- and
- the cam pin having a tapered end to be inserted into the bolt head, where the tapered end includes at least one step.
A firearm comprising a bolt carrier, wherein the bolt carrier includes:
- a bolt head having a bolt head axis, a plurality of locking lugs, and a cam pin;
- wherein
- the bolt head defines at least two recesses between at least two adjacent locking lugs, the at least two recesses having a recess radius as measured with respect to the bolt head axis;
- the bolt head defines at least two centering ramps formed in a region of the at least two recesses so that the centering ramps extend obliquely to the bolt head axis and extend in an axial direction toward a rear of the bolt head up to a central radius that is greater than the recess radius, such that the at least two centering ramps aid in a self-centering of the bolt head during a locking process;
- and
- the cam pin having a tapered end to be inserted into the bolt head, where the tapered end includes at least one step.
A method for manufacturing a bolt head according to claim 1, wherein the method includes one or more machining processes selected from milling, turning, and grinding;
- one or more forming processes selected from forging, hammering, powder metallurgy, and metal injection molding;
- one or more additive manufacturing processes;
- or any combination thereof.
Dependencies are inferred from the claim text.