U.S. helicopter armament subsystems
Designated Systems
This is a list of systems as designated by the US Army:

U.S. helicopter armament subsystems

Section Title: Designated Systems
Table Section Text: This is a list of systems as designated by the US Army:

Nomenclature	Primary Aircraft	Component Weapon/s

Armament Subsystem, Helicopter, Caliber .30 Machine Gun, Twin, M1	OH-13 Sioux and OH-23 Raven	M37C machine gun

Armament Subsystem, Helicopter, 7.62-MM Machine Gun, Twin, M2	OH-13 Sioux and OH-23 Raven	M60C machine gun

Helicopter Armament Subsystem, 2.75-Inch Rocket Launcher, M3	UH-1B/C/M Iroquois	Mk 40 Folding Fin Aerial Rocket (FFAR)

Helicopter Armament Subsystem, 2.75-Inch Rocket Launcher, M4	CH-34 Chocktaw	Mk 40 FFAR

Armament Subsystem, Helicopter, 40-MM Grenade Launcher, M5	UH-1B/C/M Iroquois	M75 grenade launcher

Armament Subsystem, Helicopter, 7.62-MM Machine Gun, Quad, M6	UH-1B/C Iroquois	M60C machine gun

Armament Subsystem, Helicopter, 7.62-MM Machine Gun, Twin, M7	OH-6 Cayuse	M60C machine gun

Armament Subsystem, Helicopter, 40-MM Grenade Launcher, M8	OH-6 Cayuse	M129 grenade launcher

Armament Subsystem, Helicopter, 7.62-MM Machine Gun - 2.75-Inch Rocket Launcher, M16	UH-1B/C Iroquois	M60C machine gun and Mk 40 FFAR

Armament Subsystem, Helicopter, 2.75-Inch Rocket Launcher, M17	UH-1B/C Iroquois	Mk 40 FFAR

Armament Subsystem, Helicopter, 7.62-MM Machine Gun - 2.75-Inch Rocket Launcher, Twin, High Rate, M21	UH-1B/C/M Iroquois	M134 machine gun and Mk 40 FFAR

Guided Missile Launcher, Helicopter Armament Subsystem, M22	UH-1B/C Iroquois	AGM-22 missile

Armament Subsystem, Helicopter, 7.62-MM Machine Gun, Door Mounted, Lightweight, M23	UH-1D/H Iroquois	M60D machine gun

Armament Subsystem, Helicopter, 7.62-MM Machine Gun, Door Mounted, Lightweight, M24	CH-47 Chinook	M60D machine gun

Guided Missile Launcher, Helicopter Armament Subsystem, M26	UH-1B/C Iroquois	BGM-71 TOW missile

Armament Subsystem, Helicopter, 7.62-MM Machine Gun, High Rate, M27	OH-6 Cayuse	M134 machine gun

Armament Subsystem, Helicopter, 7.62-MM Machine Gun - 40-MM Grenade Launcher, M28	AH-1G/Q/R/S Cobra	M134 machine gun and M129 grenade launcher

Armament Subsystem, Helicopter, 7.62-MM Machine Gun, Door Mounted, Lightweight, M29	UH-1B/C Iroquois	M60D machine gun

Armament Subsystem, Helicopter, 30-MM Cannon, M30	UH-1B/C Iroquois	XM140 cannon

Armament Subsystem, Helicopter, 20-MM Cannon, M31	UH-1B/C Iroquois	M24A1 cannon

Armament Subsystem, Helicopter, M32	ACH-47A "Guns-a-GoGo"	M60D machine gun or M2HB machine gun

Armament Subsystem, Helicopter, M33	ACH-47A "Guns-a-GoGo"	M60D machine gun or M2HB machine gun

Armament Subsystem, Helicopter, 20-MM Cannon, M34	ACH-47A "Guns-a-GoGo"	M24A1 cannon

Armament Subsystem, Helicopter, 20-MM Cannon, High Rate, M35	AH-1G Cobra	M195 cannon

Armament Subsystem, Helicopter, 7.62-MM Machine Gun, Ramp Mounted, Lightweight, M41	CH-47 Chinook	M60D machine gun

Armament Subsystem, Helicopter, 7.62-MM Machine Gun - 2.75-Inch Rocket Launcher - 40-MM Grenade Launcher, Twin, High Rate, M50	UH-1B/C/M Iroquois	M134 machine gun, M75 grenade launcher, and Mk 40 FFAR

Armament Subsystem, Helicopter, 40-MM Grenade Launcher, M51	AH-56 Cheyenne	M129 grenade launcher

Armament Subsystem, Helicopter, 30-MM Cannon, M52	AH-56 Cheyenne	XM140 cannon

Armament Subsystem, Helicopter, 7.62-MM Machine Gun, High Rate, M53	AH-56 Cheyenne	M196 machine gun

Armament Subsystem, Helicopter, Door Mounted, M59	UH-1D/H Iroquois	M213 machine gun or XM175 Grenade Launcher

Armament Subsystem, Helicopter, 7.62-MM Machine Gun, M64	AH-1G Cobra	M134 machine gun

Guided Missile Launcher, Helicopter Armament Subsystem, M65	AH-1E/F/P/Q/R/S Cobra	BGM-71 TOW missile

Armament Subsystem, Helicopter, Door Mounted, M93	UH-1F/P/N Iroquois	M134 machine gun

Armament Subsystem, Helicopter, Door Mounted, M94	UH-1F/P/N Iroquois	M134 machine gun or M129 grenade launcher

Armament Subsystem, Helicopter, 20-MM Cannon, M97	AH-1E/F/P Cobra	M197 cannon

Armament Subsystem, Helicopter, M120	AH-1 Cobra	M134, M60C machine gun or XM140, XM188, M197 cannon

Armament Subsystem, Helicopter, M139	AH-64 Apache	M230 cannon and Mk 66 Wrap-Around Fin Aerial Rocket (WAFAR)

Sentence(s)

XM4 is a 2.75-inch rocket launcher with CH-34.

final_sentence: XM4 is a 2.75-inch rocket launcher with CH-34.