Foldable pump-action rifle

A foldable pump-action shotgun providing ease of carriage, comprising:

• a lower receiver body and an upper receiver body, wherein the upper receiver body has a magazine tube connection in a lower front part thereof for a magazine tube of the shotgun, and the upper receiver body has a barrel connection in an upper front part thereof for a barrel of the shotgun,
• wherein the lower receiver body and the upper receiver body are pivotably connected to one another about an axis of a main screw provided in a folding center formed in the lower receiver body and the upper receiver body, such that by pivoting the lower receiver body and the upper receiver body relative to each other, the shotgun is foldable between an open position for cartridge feeding/unloading and a closed position for shooting,
• wherein the folding center is located in a lower front part of the lower receiver body and in a lower front part of the upper receiver body, and wherein the folding center is arranged under an end of the magazine tube when the shotgun is in the closed position,
• wherein the upper receiver body has a locking clearance in an upper rear part thereof for receiving a locking pin carried by the lower receiver body, and wherein the locking pin is inserted into the locking clearance when the shotgun is in the closed position and the locking pin is moved out of the locking clearance when switching between the open and closed positions.