The AH-1Z Viper evolved from the AH-1W Super Cobra. This helicopter is used by the US Marine Corps. It follows the line of the venerable AH-1 Cobra, which was the world's first dedicated attack helicopter. A total of 189 Vipers will be built. Most of them will be upgraded from AH-1W airframes.

Others will be newly-built machines. The Viper was introduced in 2010 and full-rate production began in 2012. The AH-1Z Viper has new engines, a new rotor, uprated transmission upgraded avionics, and a new target sighting system. Upgraded helicopters have improved flight characteristics. This helicopter is fitted with an infrared suppression system, which covers exhausts.