A bolt assembly for a rimmed-cartridge firearm has a bolt head on a forward end. An extractor is located on the bolt head and engages at least a portion of a rim of a rimmed cartridge without engaging a front surface of the rim, the extractor retaining the rim adjacent the bolt head.

A weapon system that includes a breechblock, which is formed at least by a breechblock carrier and a breechblock head, the breechblock carrier being designed so as to carry the breechblock head. To achieve the fact that forces acting upon the breechblock drive during the unlocking of the breechblock and the withdrawal of a cartridge casing are minimized or even eliminated, the breechblock head is freely movable relative to the breechblock carrier. To separate the breechblock with a breechblock drive of the weapon system during the recoil of the recoiling masses of the weapon system, a device is designed in such a way that a mechanical separation takes place between the breechblock and the breechblock drive during the recoil of the recoiling masses of the weapon system. During the forward motion of the recoiling masses, the mechanical connection between the breechblock drive and the breechblock is reestablished via the device.

A weapon system that includes a breechblock, which is formed at least by a breechblock carrier and a breechblock head, the breechblock carrier being designed so as to carry the breechblock head. To achieve the fact that forces acting upon the breechblock drive during the unlocking of the breechblock and the withdrawal of a cartridge casing are minimized or even eliminated, the breechblock head is freely movable relative to the breechblock carrier. To separate the breechblock with a breechblock drive of the weapon system during the recoil of the recoiling masses of the weapon system, a device is designed in such a way that a mechanical separation takes place between the breechblock and the breechblock drive during the recoil of the recoiling masses of the weapon system. During the forward motion of the recoiling masses, the mechanical connection between the breechblock drive and the breechblock is reestablished via the device.

Firearms and bolt mechanisms are disclosed herein. The firearm can include a bolt assembly configured to provide leverage for extracting a cartridge. The bolt body can include a main cylindrical body, handle, and a pivot pin extending through a portion of the handle within the cylindrical body. The handle can be rotated relative to the main cylindrical body to push the bolt assembly along an internal passageway of the receiver.

A breechblock for a weapon system having a recoilable barrel and having a breechblock carrier and a rotatable breechblock head. The breechblock head is carried by the breechblock carrier. The breechblock carrier has a control cam that is divided into a number of, preferably at least four, cam sections. The actual weapon function and the unlocking of the breechblock or of the breechblock head are combined in this control cam. The breechblock head comprises a control pin, which engages in the control cam and can be guided therein. Attached to the breechblock carrier are two blocking slides, which keep the breechblock head in one of two different positions, in which positions the breechblock head can enter or leave the locking portion of the barrel, namely, a forward position in the course of the actual functioning of the weapon and a rear position during the advancement of the returning masses.

A breechblock for a weapon system having a recoilable barrel and having a breechblock carrier and a rotatable breechblock head. The breechblock head is carried by the breechblock carrier. The breechblock carrier has a control cam that is divided into a number of, preferably at least four, cam sections. The actual weapon function and the unlocking of the breechblock or of the breechblock head are combined in this control cam. The breechblock head comprises a control pin, which engages in the control cam and can be guided therein. Attached to the breechblock carrier are two blocking slides, which keep the breechblock head in one of two different positions, in which positions the breechblock head can enter or leave the locking portion of the barrel, namely, a forward position in the course of the actual functioning of the weapon and a rear position during the advancement of the returning masses.

In order to ensure that forces acting on a breech drive when unlocking the breech and pulling out a cartridge case are reduced or even eliminated, a breech of a weapon system is proposed which is formed at least by one breech carrier and one breech head and the breech carrier supports the breech head. The breech carrier and the breech head can be mechanically separated from one another. This separability is achieved in that a control case which has at least one control cam is inserted in the breech carrier. In addition, the breech head has a control bolt which engages in the control cam of the control case and can be guided in it. This measure ensures that the forces acting upon the recoil of the weapon cannot act on the breech drive.

In order to ensure that forces acting on a breech drive when unlocking the breech and pulling out a cartridge case are reduced or even eliminated, a breech of a weapon system is proposed which is formed at least by one breech carrier and one breech head and the breech carrier supports the breech head. The breech carrier and the breech head can be mechanically separated from one another. This separability is achieved in that a control case which has at least one control cam is inserted in the breech carrier. In addition, the breech head has a control bolt which engages in the control cam of the control case and can be guided in it. This measure ensures that the forces acting upon the recoil of the weapon cannot act on the breech drive.

A weapon system having a breechblock, wherein the breechblock can be mechanically connected to a drive of the weapon system. The weapon system comprises means which are designed in such a way that a mechanical separation occurs between the breechblock and the breechblock drive with the recoil of the recoiling masses of the weapon system. With the forward motion of the recoiling masses, the mechanical connection between the breechblock drive and the breechblock is re-formed.

A firearm cartridge ejector system is disclosed that may include a bolt or a bolt carrier group, and an ejector that may be configured to eject an ammunition cartridge from the firearm bolt or bolt carrier group. The ejector may further include a stem configured to engage an ejector spring, and an ejector face that may be reniform-shaped and attached to the stem and configured to engage and eject the ammunition cartridge.