Abstract: Trigger apparatus for use with firearms are described herein. An example electronic trigger apparatus described herein includes a first actuation drive to move an actuation member between an initial position and an operating position at which the actuating member is to activate a trigger lever of the firearm to discharge the firearm. A clutch is movable between a first position to operatively couple the first actuation drive to the actuation member and a second position to releasably couple the first actuation drive from the actuation member. A second actuation drive is operatively coupled to the actuation member and biases the actuation member to the initial position when the first actuation drive is releasably coupled from the actuating member via the clutch.

Abstract: A firearm conversion system for firearms having a pivoted hammer. The conversion system utilizes a plurality of different mode determinating cams which may be alternately mounted upon a shaft, the shaft also supporting the pivoted hammer. The cams each provide a selection among firing modes including safe, fire, single-action and double-action.

Abstract: A firearm, for example a semiautomatic weapon, in particular an automatic pistol, has control elements for controlling several operation or adjustment functions of the weapon. By means of an easily exchangeable functional element, for example a cam disk, it is possible to determine which operation or adjustment function, among all functions made possible by the weapon control elements, the user can set at his weapon. The functional element and/or a component for holding the functional element is designed and arranged in such a way that it can not only be easily fitted in and removed from the firearm not disassembled or only disassembled into its main parts, but also replaced by another type of functional element.