Heckler and Koch Gmbh

Alexandra Kuhnle

Wilhelm Fischbach

Tobias Maier

Christian Deubig

Example apparatus are disclosed for a lockable self-loading firearm, comprising a bolt head comprising a feed regulator pin extending traverse to a longitudinal direction with respect to the firearm, a breechblock carrier in a receiver movable in a longitudinal direction with respect to the firearm, the breechblock carrier comprising a control guide extending diagonally in the longitudinal direction with respect to the firearm through which the feed regulator pin is disposed, the control guide comprising a releasing control edge, comprising a first straight edge section positioned at a shallow angle with respect to the longitudinal direction, a second straight edge section positioned at a significantly greater angle than the first straight edge section with respect to the longitudinal direction, a third curved edge section with tangents positioned at increasingly greater angles than the second straight edge section with respect to the longitudinal direction, a locking control edge opposite the releasing control edge, the locking control edge comprising a fourth straight edge section positioned parallel with respect to the second straight edge section, a fifth straight edge section positioned parallel with respect to the first straight edge section, and at a releasing end of the releasing control edge, a sixth arc-shaped edge section connecting a first end of the third curved edge section and a second end of the first straight edge section to receive the feed regulator pin in a releasing position, wherein the sixth arc-shaped edge section has a greater diameter than the feed regulator pin with respect to the longitudinal direction.

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Sulz, Germany

Alexandra Kuhnle