heavy-barreled machine gun

four-barreled anti-aircraft gun

side-by-side double-barreled gun

heavy machine gun (HMG)

heavy-machine-gun backplate

barreled weapon

cannon barreled pistol

double-barreled saddle pistol

submachine gun / sub-machine gun (SMG; smg)

automatic heavy barrel rifle / heavy barrel automatic rifle

heavy-armored (heavy armoured)

heavy-weight torpedo / heavy weight torpedo (HWT)

machine-to-machine data communication

human machine interface (HMI) / human-to-machine interface

heavy gun tank

heavy gun

antiaircraft machine gun

general purpose machine gun (GPMG)

large caliber machine gun

light machine gun (LMG)

machine gun (MG; mg)

medium machine gun (MMG)

medium-caliber machine gun

MG3 machine gun

.50 BMG (.50 Browning Machine Gun, 50 Browning)

LMG pouch (Light Machine Gun)

backplate of a light machine gun

machine-gun team

bipod-supported machine gun

chatter of machine-gun fire

Grenade Machine Gun (GMG)

elevating dial of a machine gun

aerial (service) machine gun