Abstract: A trigger assembly for a paintball gun preferably includes a trigger arranged to move between a forward and a rearward position. A position transducer is preferably arranged in communication with the trigger to detect an amount of movement of the trigger. The position transducer preferably generates a signal corresponding to the amount of movement of the trigger. A control circuit preferably receives the signal from the position transducer and initiates a firing operation of a firing device when the output signal characteristics satisfy certain predetermined parameters. In one embodiment, the control circuit initiates a firing operation when a change in the output signal is greater than a predetermined threshold value. A change in the output signal can be determined by comparing a present output signal value with a reference signal value. The reference signal value can be set when the trigger is at rest or when the trigger transitions from a forward movement to a rearward movement.