Locking device for weapons

A locking device to be secured in a weapon, comprising a lock body (3-5), a lock cylinder (56) rotatably arranged in the lock body (3-5) and a locking means, which locking means has a friction body (10) displaceably arranged in relation to the lock body (3-5) and insertable into the chamber or barrel of the weapon, which friction body is designed to engage with an inside wall of the chamber/barrel with frictional effect at the insertion into the chamber/barrel, and at least one blocking element (23) arranged to be moved into engagement with the inside wall of the chamber/barrel in case of a mutual displacement between the friction body (10) and the lock body (3-5), the locking device furthermore comprising a blocking member (19), which by means of the lock cylinder (56) is moveable between a blocking position, in which the blocking member (19) engages with the friction body (10) and prevents longitudinal displacement of the friction body (10) in relation to the lock body (3-5), and a free position, in which the blocking member (19) does not engage with the friction body (10) and allow longitudinal displacement of the friction body (10) in relation to the lock body (3-5), characterized in that the locking device in addition to the first locking means comprises a second locking means (73), which by means of the lock cylinder (56) is movable between a first position, corresponding to the blocking position of the blocking member, in which the second locking means (73) allows insertion of the locking device into and removal of the same out of a space in the weapon located adjacent to the chamber/barrel, and a second position, corresponding to the free position of the blocking member, in which the second locking means, when the locking device has been put in place in the weapon with the lock body (3-5) extending into the chamber/barrel, is arranged to engage in said space for securing of the locking device in the weapon.