coaxial machine gun

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

coaxial-rotor helicopter

coaxial rotors

hollow shaft (of lower coaxial shaft)

through shaft (of upper coaxial rotor)

upper and lower coaxial rotors

coaxial mounting

coaxial

machine-to-machine data communication

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

antiaircraft machine gun

general purpose machine gun (GPMG)

heavy machine gun (HMG)

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

heavy-machine-gun backplate

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

antiaircraft light machine gun

articulated strip (of a machine-gun feed)

blow-back operated machine gun