Phaser Type III
From UFStarfleet LCARS
A phaser rifle (often referred to as a type-3 phaser) is a rifle variation of the standard phaser used by the Federation.
24th century phaser rifles have sixteen power settings, fully-autonomous recharge capability, multiple-target acquisition, and gyro-stabilization. They are slightly less powerful than Cardassian phase-disruptor rifles, and are considered by some to be less effective as a field weapon due to their complexity, despite being more powerful than the standard phaser.