Abstract: A cylinder lock comprising a non-rotatable cylinder housing and therein a key operated lock mechanism including a turnable cylinder and a plurality of movable locking discs. When the locking discs are in their zero position, that is, their normal position before the key is inserted into the lock, they keep the lock mechanism in a locked position, in which the cylinder is prevented from turning relatively to the cylinder housing. The locking discs are movable by the key to a cylinder releasing position, and the key forces the locking discs back to their zero position after operation of the lock mechanism. There are spring means arranged to urge at least some of the locking discs in a direction away from their cylinder releasing position towards their zero position. With respect to the normal function of the lock mechanism these spring means are functionally redundant. Their only function is to provide an improved security against lock picking.

Abstract: The invention relates to a device for locking a firearm preferably provided with a wooden stock (1) comprising a so called pistol end. The locking device according to the invention comprises a cylinder lock (4) mounted from beneath into the pistol end of the stock (1) behind the trigger (2) and mechanical means preferably comprising a flexible shaft (5) for transmitting the movement of a turnable element of the cylinder lock from the cylinder lock (4) to a member (6) essential for the function of the firing device of the arm.