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The subject of this article appears in Call of Duty: Infinite Warfare

"Creates additional reflections on energy shots. Increases damage against equipment"
— In-game description

The Ram Servo is an attachment featured in Call of Duty: Infinite Warfare. It creates additional reflections on energy shots whilst increases damage against equipment.

As said, the Ram Servo attachment is only available to energy weapons as ballistic weapons cannot reflect off of walls, but the tradeoff is that they can penetrate walls. It's ballistic weapon counterpart is FMJ.