MAG 58

Petty Officer Aircrew Raymond Solomon conducts pre-flight inspections of a Mag 58 machine gun on the Seahawk MH-60R helicopter embarked on HMAS Parramatta.
Function
General Support Machine Gun
Manufacturer Fabrique Nationale Herstal (FN Herstal)
Designed
1958
Action
Gas-operated
Modes
Fully automatic
Feed Belt-fed
Rate of Fire
750-1000 rounds per minute
Ammunition
ball and tracer
Caliber
7.62 millimetre
Range 800 metres (LSW: maximum effective)

The 7.62MM MAG 58 General Support Machine Gun (GSMG) is a fully automatic crew-serviced weapon that is mounted on the starboard side door of Navy's MH-60R and MRH-90 helicopters. It is equipped with a laser for targeting which also has illuminating capabilities for night usage.

Ammunition usually consists of a combination of ball and tracer rounds belt-fed from 200 round ammunition containers. A brass catch bag that holds 400 empty cases hangs under the gun.

The MAG 58 is also used by Navy personnel as a Light Support Weapon (LSW) usually fired from a bipod. The maximum effective range of the GSMG MAG 58 in the LSW role is 800 metres.

Leading Seaman Aircrew Michael Sales conducts pre-flight inspections of a Mag 58 machine gun on the Seahawk MH-60R helicopter embarked on HMAS Parramatta.
Leading Seaman Aircrew Michael Sales conducts pre-flight inspections of a Mag 58 machine gun on the Seahawk MH-60R helicopter embarked on HMAS Parramatta.
Leading Seaman Aircrewman Jason Griffiths mans the MAG 58 light support weapon in HMAS Stuart's MH-60R helicopter to provide support during a boarding operation serial for Exercise MASTEX 19 during the East Asia Deployment.
Leading Seaman Aircrewman Jason Griffiths mans the MAG 58 light support weapon in HMAS Stuart's MH-60R helicopter to provide support during a boarding operation serial for Exercise MASTEX 19 during the East Asia Deployment.
Leading Seaman Boatswains Mate Lukasz Byzdra maintains essential weaponry skills by conducting live fire drills with a Mag 58 machine gun on the flight deck of HMAS Adelaide.
Leading Seaman Boatswains Mate Lukasz Byzdra maintains essential weaponry skills by conducting live fire drills with a Mag 58 machine gun on the flight deck of HMAS Adelaide.