Pretty cool rifle, it's a shame it doesn't work with custom Rebel hands.
Also the altfire charging animation is broken (the rifle gets moved to the body and positioned horizontally, as if the player character is sprinting or aiming at a friendly NPC, while the altfire is charging (right after the right mouse button is pressed, and until the energy ball is launched from the rifle)

Looks like assault rifle from halo, but without "scope"