A device for quickly replacing the magazine of a handheld automatic small arm having a bullpup configuration relates to military equipment and is intended to maximally reduce the time for replacinga spent magazine and to increase the amount of ammunition that can be carried. Once a Magazine is spent, the bolt comes to rest ona bolt stop. In an embodiment involving a bolt stop the shooter removes the active magazine using a control key. Upon return the control key releases a pivoting tray that is held by a latch spring and the pivoting tray moves into a bottom position. The shooter takes hold of the part of a spare magazine which protrudes from the butt and moves the spare magazine into a magazine opening. The bolt stop releases the bolt, which under the effect of a bolt spring advances grips a round from the active magazine and rams it into the chamber. Firing can be continued immediately.

A device for quickly replacing the magazine of a handheld automatic small arm having a bullpup configuration relates to military equipment and is intended to maximally reduce the time for replacinga spent magazine and to increase the amount of ammunition that can be carried. Once a Magazine is spent, the bolt comes to rest ona bolt stop. In an embodiment involving a bolt stop the shooter removes the active magazine using a control key. Upon return the control key releases a pivoting tray that is held by a latch spring and the pivoting tray moves into a bottom position. The shooter takes hold of the part of a spare magazine which protrudes from the butt and moves the spare magazine into a magazine opening. The bolt stop releases the bolt, which under the effect of a bolt spring advances grips a round from the active magazine and rams it into the chamber. Firing can be continued immediately.

Firearms have a lower frame including a trigger and a grip, an upper frame including a barrel and a bolt, and a magazine receptacle configured to receive a magazine and positioned between the upper and lower frames. The lower frame and upper frame may each have forward portions pivotally connected to each other to form a pivotal connection. The pivotal connection may be operable to pivot on a horizontal axis transverse to the firearm. The upper and lower frames may be movable between an open position in which the upper and lower frame are angularly separated from each other and the magazine receptacle is accessible for removal and replacement of a magazine, and a closed position in which the magazine is closely received between the upper and lower frames. The magazine receptacle may be laterally open on both sides of the firearm.

Firearms have a lower frame including a trigger and a grip, an upper frame including a barrel and a bolt, and a magazine receptacle configured to receive a magazine and positioned between the upper and lower frames. The lower frame and upper frame may each have forward portions pivotally connected to each other to form a pivotal connection. The pivotal connection may be operable to pivot on a horizontal axis transverse to the firearm. The upper and lower frames may be movable between an open position in which the upper and lower frame are angularly separated from each other and the magazine receptacle is accessible for removal and replacement of a magazine, and a closed position in which the magazine is closely received between the upper and lower frames. The magazine receptacle may be laterally open on both sides of the firearm.

Firearms have a lower frame including a trigger and a grip, an upper frame including a barrel and a bolt, and a magazine receptacle configured to receive a magazine and positioned between the upper and lower frames. The lower frame and upper frame may each have forward portions pivotally connected to each other to form a pivotal connection. The pivotal connection may be operable to pivot on a horizontal axis transverse to the firearm. The upper and lower frames may be movable between an open position in which the upper and lower frame are angularly separated from each other and the magazine receptacle is accessible for removal and replacement of a magazine, and a closed position in which the magazine is closely received between the upper and lower frames. The magazine receptacle may be laterally open on both sides of the firearm.

A device for quickly replacing the magazine of a handheld automatic small arm having a bullpup configuration relates to military equipment and is intended to maximally reduce the time for replacing a spent magazine and to increase the amount of ammunition that can be carried. Once a Magazine is spent, the bolt comes to rest on a bolt stop. In an embodiment involving a bolt stop the shooter removes the active magazine using a control key. Upon return the control key releases a pivoting tray that is held by a latch spring and the pivoting tray moves into a bottom position. The shooter takes hold of the part of a spare magazine which protrudes from the butt and moves the spare magazine into a magazine opening. The bolt stop releases the bolt, which under the effect of a bolt spring advances grips a round from the active magazine and rams it into the chamber. Firing can be continued immediately.

A device for quickly replacing the magazine of a handheld automatic small arm having a bullpup configuration relates to military equipment and is intended to maximally reduce the time for replacing a spent magazine and to increase the amount of ammunition that can be carried. Once a Magazine is spent, the bolt comes to rest on a bolt stop. In an embodiment involving a bolt stop the shooter removes the active magazine using a control key. Upon return the control key releases a pivoting tray that is held by a latch spring and the pivoting tray moves into a bottom position. The shooter takes hold of the part of a spare magazine which protrudes from the butt and moves the spare magazine into a magazine opening. The bolt stop releases the bolt, which under the effect of a bolt spring advances grips a round from the active magazine and rams it into the chamber. Firing can be continued immediately.