A breech for a straight-pull repeater rifle, comprising a breech box and a locking sleeve guided therein as well as a locking bar guided in the breech box and connected to the locking sleeve, the locking bar connects a bolt head to a bolt handle with a interposition of a chain link, wherein the chain link is linked in an articulated manner to the locking bar and the bolt handle, and the bolt handle can be swivelled between an open position and a closed position of the breech and interacts with a firing pin nut connected to a firing pin. A bolt head inserted into a breech sleeve at an end of the breech facing away from the bolt handle is provided. The locking sleeve and the locking bar are a one-part locking sleeve-bar and a locking spring pushing the chain link in the direction of its closed position is provided.

A firearm action has a receiver defining a bolt passage and having a latch engagement facility, a bolt assembly including a bolt body received in the passage and operable to reciprocate between a forward battery position and a rear open position, the bolt assembly including a bolt handle movable with respect to the body between a handle forward position and a handle rearward position, the bolt assembly including a bolt latch body having a latch element, the bolt latch body movable between a locked condition in which the latch element engages the latch engagement facility when the bolt assembly is in the forward position and the bolt handle is in the forward position to prevent reciprocation of the bolt, and an unlocked position in which the latch element is disengaged from the latch engagement facility to enable reciprocation of the bolt.

A rifle has a fixed main body, including a barrel, a receiver with an upper opening, a breech element, and a trigger assembly at least partly accommodated in the receiver. The rifle has a slide assembly including a shutter group positioned on the receiver at the upper opening and axially movable by the user between an advanced shooting configuration and a retracted rearming configuration, and vice versa. The rifle includes a recoil group at least partially accommodated in the receiver, for cooperating with the slide assembly having a thrust device with a thrust lever, which is rotationally movable and a thrust spring, which performs torsional action on the thrust lever. The thrust lever extends between a lever upper end and a lever lower end. The lever upper end is suitable engageable with the advancing slide assembly to push it into the advanced configuration.

A rifle has a fixed main body, including a barrel, a receiver with an upper opening, a breech element, and a trigger assembly at least partly accommodated in the receiver. The rifle has a slide assembly including a shutter group positioned on the receiver at the upper opening and axially movable by the user between an advanced shooting configuration and a retracted rearming configuration, and vice versa. The rifle includes a recoil group at least partially accommodated in the receiver, for cooperating with the slide assembly having a thrust device with a thrust lever, which is rotationally movable and a thrust spring, which performs torsional action on the thrust lever. The thrust lever extends between a lever upper end and a lever lower end. The lever upper end is suitable engageable with the advancing slide assembly to push it into the advanced configuration.

An apparatus and method for modifying a handgun to accept an optical sight comprises a modified slide mechanism adapted to include a flat recessed rear section configured to receive an adapter plate for mounting an optical sight. Various embodiments of the adapter include modified internal components used to replace stock components what will no longer fit within the modified profile of the slide mechanism. Replacement of the slide mechanism and associated internal components will allow a user to add an optical sight to an existing handgun.

A compact action for a firearm including an upper receiver housing incorporating a barrel. A bolt and supporting carrier is positioned within the receiver housing so that the bolt is engaged to a rear receiver end of the barrel in a cartridge chambering position. Guide rods are supported within the housing above the barrel and extend in parallel to a rear located end plate. The carrier includes a carrier key supported by and displaceable along the guide rods between the barrel and a rearward bumper component. A gas tube extends from a forward located gas block overlaying a gas discharge aperture in the barrel to a gas key for actuating the carrier rearwardly following discharge of a ballistic from the barrel. A charging handle is manually displaceable along a slot in the housing for actuating an interior slider component, in turn actuating the carrier key to cycle the carrier and bolt.

A compact action for a firearm including an upper receiver housing incorporating a barrel. A bolt and supporting carrier is positioned within the receiver housing so that the bolt is engaged to a rear receiver end of the barrel in a cartridge chambering position. Guide rods are supported within the housing above the barrel and extend in parallel to a rear located end plate. The carrier includes a carrier key supported by and displaceable along the guide rods between the barrel and a rearward bumper component. A gas tube extends from a forward located gas block overlaying a gas discharge aperture in the barrel to a gas key for actuating the carrier rearwardly following discharge of a ballistic from the barrel. A charging handle is manually displaceable along a slot in the housing for actuating an interior slider component, in turn actuating the carrier key to cycle the carrier and bolt.

A rifle has a fixed main body, including a barrel, a receiver with an upper opening, and a breech element. A trigger group is at least partially housed in the receiver, including a trigger and a hammer device operable by the trigger. A carriage assembly includes an assembly body and a shutter group at least partially housed in the assembly body. The carriage assembly is positioned on the receiver at the upper opening and is axially movable by a user between an advanced shooting configuration and a retracted rearming configuration. Upon axial movement of the carriage assembly, between the retracted and advanced configurations, the shutter group is first moved axially in translation and then in roto-translation. The shutter group includes a central body and a command pin protruding radially from the shutter body. The command pin engages the assembly body so reciprocal interaction guides the shutter group in rotation.

A rifle has a fixed main body, including a barrel, a receiver with an upper opening, and a breech element. A trigger group is at least partially housed in the receiver, including a trigger and a hammer device operable by the trigger. A carriage assembly includes an assembly body and a shutter group at least partially housed in the assembly body. The carriage assembly is positioned on the receiver at the upper opening and is axially movable by a user between an advanced shooting configuration and a retracted rearming configuration. Upon axial movement of the carriage assembly, between the retracted and advanced configurations, the shutter group is first moved axially in translation and then in roto-translation. The shutter group includes a central body and a command pin protruding radially from the shutter body. The command pin engages the assembly body so reciprocal interaction guides the shutter group in rotation.

A rifle having a straight pull bolt assembly with a bolt handle that extends outward and downward from a bolt operation mechanism. The bolt handle rotatable a limited rotational range forward and rearwardly about a horizontal axis for operating the mechanism. The handle can be reconfigured to position its rotational range about the horizontal axis and can be attached to the mechanism at either left or right sides to provide for ambidextrous operation. Bolt heads, lower frame members with magazine wells, and barrel assemblies can be readily swapped to change ammunition. The bolt assembly can be unlocked by firing or by a thumb push button release at the backside of the mechanism. A bolt removal release mechanism is forward of the thumb pushbutton and an ejector includes a spring bias and cam follower surface to reliably eject casings.