Device for adjusting the orientation of a rear stock of a portable firearm

1. A device for adjusting the orientation of a rear stock of a handgun relative to a barrel of the handgun, comprising a ball joint, which is arranged between the rear stock and a front part fixedly connected to the barrel which ball joint comprises a first joint part connected in a positionally fixed manner to the front part or the rear stock, and a second joint part, which can be pivoted relative to the first joint part and which is connected in a positionally fixed manner to the other of the rear stock or the front part, wherein the first joint part and the second joint part are connected to one another by means of a fixing apparatus so as to be pivotable with respect to one another in a released state of the fixing apparatus, and so as to be fixed with respect to one another in their adjusted positions in a fixed state of the fixing apparatus, and the fixing apparatus comprises at least one fixing element for releasing and fixing the fixing apparatus, wherein the first joint part comprises a spherical, in particular ball-shaped, joint head, which is mounted in a corresponding spherical recess of the second joint part, and the fixing apparatus comprises a clamping part, which likewise comprises a recess for receiving the spherical joint head at least in some sections, wherein, in the fixed state, the joint head is clamped between the second joint part and the clamping part by means of the at least one fixing element, wherein the second joint part comprising the spherical recess or the clamping part comprises a threaded hole and/or a passage opening, and the other of the second joint part or the clamping part comprises a passage opening and an access opening, the access opening being provided for accessing the passage opening and the threaded hole provided for receiving the fixing element, wherein the access opening is arranged on a surface of the clamping part or of the second joint part, which surface faces away from the rear stock.

2. The device according to claim 1 , wherein at least one screw is provided, as the fixing element.

3. The device according to one of claim 2 , wherein joint head is arranged in a rear section of the front part, in particular in a handle section.

4. The device of claim 2 wherein four screws are provided.

5. The device according to claim 3 , wherein the joint head is arranged in front of a front end face of the rear stock which front end face faces the front part.

6. The device according to claim 5 , wherein the joint head is connected to the rear stock by means of a mounting rod protruding from said joint head.

7. The device according to claim 6 , wherein the joint part comprising the recess for receiving the joint head is connected to the front part.

8. The device according to claim 7 , wherein the clamping part comprises a passage opening for receiving the mounting rod.

9. The device of claim 1 wherein the device is a long firearm.