Most rifles are out-fitted with a targetting scope to inprove accuracy.
Laser Rifles are used for long-range attack. They shoot a powerful laser blast which is condensed in the long barrel so that it will be effective at long-range. Aurra Sing's long range sniper riffle. In such weapons, an ultrasonic vibration generator makes the blade sing with a high-pitched whine, enabling it to lacerate with the merest touch.