Abstract: A pyrotechnic initiator having an internal sleeve that facilitates the loading and durable retention of a pyrotechnic charge in place on the header surface within the initiator. The sleeve beneficially retains the charge either in conjunction with the upper interior surface of the charge can, or through the use of a monolithic charge and a narrowed top end of the sleeve.

Abstract: A device for firearms (1) and a firearm (1) having this device are disclosed. The device is used for detecting a state in the space (10) and for transmitting a signal correlated to the state. The device has a sensor region (24.1, 24.2) for detecting the state and a conductor arrangement (24.3), connected to the sensor region (24.1, 24.2) for transmitting the signal. The sensor region (24.1, 24.2) and the conductor arrangement (24.3) are formed by a fiber-optic system (24). The device also has a movable indicator (17), whose position corresponds to the state to be detected in the space (10) to be monitored and is detectable by the sensor region (24.1, 24.2). The sensor region (24.1, 24.2) of the fiber-optic system is protected by a shield (20).