The attachment was added to Call of Duty: Mobile in Season 9, under the name Red Dot Sight 4.
Call of Duty: Black Ops Cold War[]
"Red-dot sight of Soviet origin with 1.75x magnification features and illuminated aimpoint to improve aiming effectiveness and target acquisition."
— In-game description
The attachment reappears in Call of Duty: Black Ops Cold War under the name Kobra Red Dot, as an Optic class attachment available for primary weapons. It is a red dot based sight providing the highest base magnification at 1.75x, but at the cost of having the highest profile of all the red dot sights.
Call of Duty: Modern Warfare II[]
"A precise reflex sight of Russian make."
— In-game description
The Kobra returns in Call of Duty: Modern Warfare II as the DF105 Reflex Sight.