Silencer for a firearm

1. A firearm silencer, including a substantially cylindrical outer sheath having a first end and a second end, a barrel hole in the first end of the outer sheath, a damping element inside said outer sheath and connection means for connecting the silencer to a firearm barrel, wherein said connection means include at least one clamping surface adapted to be pressed against an outer surface of said firearm barrel, wherein said connection means comprise a locking frame, at least one mounting lever hingedly connected to the locking frame and a twisting device functionally connected to the mounting lever for turning the at least one mounting lever, and said at least one clamping surface is integrated to the at least one mounting lever, and wherein said twisting device comprises a twisting sleeve movably connected to the cylindrical outer sheath of the silencer, said twisting sleeve having an inner surface and an outer surface, said outer surface having a conically tapering tip portion facing the at least one mounting lever.

2. The firearm silencer according to claim 1 , wherein said at least one mounting lever is connected to the locking frame with a swivel axle.

3. The firearm silencer according to claim 1 , wherein on an edge surface of the barrel hole there are fastening threads, said twisting sleeve has matching threads on the outer surface thereof and the twisting sleeve is screwed into said barrel hole.

4. The firearm silencer according to claim 3 , wherein around the barrel hole there is a detachable fastening collar and said fastening threads are arranged to said fastening collar.

5. The firearm silencer according to claim 1 , wherein on the inner surface of the twisting sleeve there is at least one detachable sealing ring.

6. The firearm silencer according to claim 5 , wherein on the inner surface of the twisting sleeve there is at least one groove and said at least one detachable sealing ring is fitted into said at least one groove.

7. The firearm silencer according to claim 1 , wherein said at least one mounting lever comprises three or four mounting levers radially connected to the locking frame, wherein the at least one clamping surface comprises a corresponding clamping surface integrated to each of the three or four mounting levers, and wherein each of the corresponding clamping surfaces are adapted to settle against the outer surface of said firearm barrel.

8. The firearm silencer according to claim 1 , wherein the locking frame and the at least one mounting lever is inside said cylindrical outer sheath.

9. The firearm silencer according to claim 1 , wherein said connection means further include at least one clamping surface fixedly integrated to the locking frame.

10. The firearm silencer according to claim 1 , wherein said locking frame is fixedly connected to the outer sheath.

11. The firearm silencer according to claim 1 , wherein said locking frame is detachably connected to the outer sheath.

12. The firearm silencer according to claim 1 , wherein said damping element has a perforated inner pipe and a centering bushing at a first end of the perforated inner pipe said centering bushing having a conical end surface for receiving an end of the firearm barrel.

13. The firearm silencer according to claim 12 , wherein said centering bushing is attached to the perforated inner pipe in a detachable manner.

14. The firearm silencer according to claim 12 , wherein the centering bushing is made of soft metal or alloy or of plastics.