Abstract: The magazine (1) has a mouth (3) for bullet entry in correspondence of an end thereof, and a thrust element (8) elastically urged towards the bullet entry mouth (3). In correspondence of the mouth (3) at least one pawl (10) is provided, which is pushed by a spring (11) to a lock postion, in which it retains the bullets (4) which are urged against it by the thrust element (8), the pawl (10) being movable, against the action of the spring (11), to reach a position of disengagement of the opening of the mouth (3), in which position it allows the bullets (4) to be entered perpendicularly to their axis, in the longitudinal direction of the magazine (1). The pawl (10) has a substantially `V`-shaped configuration, hinged in correspondence of the vertex of the `V`.