Infantry Weapons

Machine gun

Machine guns are automatic small arms built for sustained rapid fire, with roles spanning light squad automatic weapons, medium or general-purpose guns, and heavy crew-served weapons. This broad catalog entry tracks source-backed machine-gun use, possession, or capture in recent conflicts while treating model-specific facts such as M60, Type 80/PKM-T80, M240, and M2 details as examples rather than universal traits.

Machine gun, Automatic small arm / crew-served firearm, Infantry Weapons
Image source: M240B Medium Machine Gun image

Role in Conflicts

Profile / Specs

Profile

Origin
Multiple countries
Type
Automatic small arm / crew-served firearm
Service note
Late 19th century to present; this entry covers post-2015 conflict documentation
Designer
Multiple designers
Designed
Modern automatic machine guns emerged in the late 19th century
Unit cost
Varies by model and mounting
Produced
Late 19th century to present, depending on model
Number built
Millions across machine-gun families

Specifications

Classification
Common classes include light machine guns, medium/general-purpose machine guns, and heavy machine guns; classification depends on cartridge, mount, crew, and employment.
Operating principle
Modern automatic firearms use cartridge energy to cycle the action; powerful ammunition commonly requires locked-breech gas, recoil, or retarded-blowback mechanisms.
Feed system
Common feed systems include belts, drums, and box magazines depending on model and role; belts can be disintegrating or non-disintegrating.
Typical cyclic rate
Britannica describes many belt-fed machine guns as firing roughly 500 to 1,000 rounds per minute.
Caliber range
Modern examples range from intermediate rifle calibers through full-power rifle cartridges and heavy machine-gun cartridges above 8 mm but below the 20 mm cannon threshold.
Light machine gun role
Usually rifle-caliber, often single-operator weapons for short-burst sustained automatic fire from a bipod or similar support.
General-purpose machine gun role
Typically belt-fed weapons usable by dismounted infantry or from heavier mounts and vehicles for sustained fire.
Heavy machine gun role
Crew-served automatic firearms generally mounted on vehicles, boats, aircraft, fortifications, or heavy tripods.
Role
Sustained automatic fire for infantry support, defensive positions, vehicle mounts, convoy and force protection, and area denial.
Machine-Gun Role Classes
Light

Portable squad or section automatic-fire weapons, usually rifle-caliber and often fitted with bipods and heavier barrels for controlled bursts.

Medium / general-purpose

Belt-fed guns that can shift between dismounted, tripod, vehicle, boat, aircraft, or fixed-mount use, depending on doctrine and mounting hardware.

Heavy

Crew-served automatic guns in larger calibers, commonly used from vehicles, heavy tripods, fortifications, or other mounts when range and penetration matter more than portability.

Variants

These rows describe common machine-gun role classes rather than variants of one model; individual weapons can blur categories depending on cartridge, mount, crew, and doctrine.

VariantConfigurationDesignation notes
Light machine gunSquad or light support automatic fire

Usually rifle-caliber, often single-user weapons with sustained-fire features such as a heavier barrel and bipod.

Sources: Small Arms Survey: Weapons Identification - Small Arms

Medium / general-purpose machine gunDismounted and mounted sustained fire

General-purpose machine guns are commonly belt-fed weapons usable by infantry or from heavier mounts and vehicles.

Sources: Small Arms Survey: Weapons Identification - Small Arms

Heavy machine gunCrew-served heavy automatic fire

Small Arms Survey treats heavy machine guns as crew-served automatic firearms above 8 mm and below 20 mm, commonly mounted on vehicles or heavy tripods.

Sources: Small Arms Survey: Weapons Identification - Light Weapons

Vehicle-mounted machine gunMounted application

General-purpose and heavy machine guns are frequently attached to vehicle, aircraft, boat, or fixed mounts for sustained-fire applications.

Sources: Small Arms Survey: Weapons Identification - Small Arms, Small Arms Survey: Weapons Identification - Light Weapons

Carrier Boats

The broad machine-gun entry is used for the Cutlass class's documented patrol-boat armament.

CarrierCarrier typeCarriage evidence
Cutlass Class, Force protection patrol boat, Naval SystemsCutlass ClassFast patrol boat

GOV.UK says HMS Cutlass and HMS Dagger initially will carry three purpose machine guns, and Your Gibraltar TV says the boats are armed with three general-purpose machine guns.

Sources: GOV.UK: Royal Navy confirms two new fast patrol boats, Royal Navy Gib Squadron Welcomes HMS Cutlass - Your Gibraltar TV

Timeline

Machine gun Key Events

  1. Gatling patents a rapid-fire predecessor

    Richard J. Gatling patented a six-barrel repeating gun that the Smithsonian treats as a rapid-fire Civil War-era predecessor rather than a modern automatic machine gun.

    Sources: Smithsonian: Gatling gun patent model

  2. Maxim patents a true automatic gun

    Imperial War Museums describes Hiram Maxim's recoil-operated, belt-fed gun as the first fully automatic machine gun design.

    Sources: Imperial War Museums: British Maxim machinegun

  3. Light machine-gun roles emerge

    Small Arms Survey places the first light machine guns in the early 1910s, as armies separated portable automatic weapons from heavier sustained-fire guns.

    Sources: Small Arms Survey: Weapons Identification - Small Arms

  4. Postwar general-purpose guns define a durable class

    Small Arms Survey identifies the FN MAG 58 and Soviet PK family as defining examples of the general-purpose machine-gun category.

    Sources: Small Arms Survey: Weapons Identification - Small Arms

Media

Machine gun Videos

Machine gun Images

Machine gun, Automatic small arm / crew-served firearm, Infantry Weapons - view 1
Source: M60 machine gun image
Machine gun, Automatic small arm / crew-served firearm, Infantry Weapons - view 2
Source: M2 machine gun image
Related Weapon Systems
Type 80/PKM-T80 general-purpose machine gun, 7.62×54mmR general-purpose machine gun, Infantry WeaponsInfantry WeaponsType 80/PKM-T80 general-purpose machine gun7.62×54mmR general-purpose machine gunThe Type 80 is a Chinese PKM-pattern, belt-fed 7.62×54mmR general-purpose machine gun also encountered under M80 and PKM-T80 designations. Direct conflict evidence spans Small Arms Survey documentation of Type 80 guns with South Sudanese anti-government militias in 2011, Conflict Armament Research records of Chinese M80 guns captured from Islamic State forces in Syria in 2014, and AP reporting on Type 80 or PKM-T80 weapons with Hamas fighters in Gaza.
PKM/PK, 7.62 mm general-purpose machine gun, Infantry WeaponsInfantry WeaponsPKM/PK7.62 mm general-purpose machine gunThe PK and lighter PKM are Soviet-designed, belt-fed 7.62x54R general-purpose machine guns used from bipods, tripods, vehicles, remote weapon stations, and improvised mounts. Their low weight for the class, non-disintegrating belt feed, quick-change barrel concept, and wide licensed-production base make the family a recurring infantry fire-support weapon in recent conflicts, with documented rows here covering Ukraine, Yemen, Syria, Iraq, Mali, Lake Chad, Gaza, Afghanistan, and Turkey's conflict with the PKK.
FN MAG general-purpose machine gun, 7.62x51mm NATO general-purpose machine gun, Infantry WeaponsInfantry WeaponsFN MAG general-purpose machine gun7.62x51mm NATO general-purpose machine gunThe FN MAG is FN Herstal's Belgian 7.62x51mm NATO belt-fed general-purpose machine gun family, fielded from infantry bipods, tripods, vehicles, aircraft, ships, and boats. The catalog record connects the MAG and its M240/L7A2/MAG 58 designations to directly sourced conflict evidence: surrendered Boko Haram-held stocks in Nigeria, coalition base-defense training during Operation Inherent Resolve, and Afghan special-operations weapons training during the War in Afghanistan.
.30-Caliber Machine Gun, Crew-served medium machine gun, Infantry WeaponsInfantry Weapons.30-Caliber Machine GunCrew-served medium machine gunThe .30-caliber machine gun entry covers model-unspecified crew-served automatic weapons recovered from IS-linked militant contexts in Mindanao. Philippine reporting documented one gun among weapons cleared from Marawi's former Main Battle Area after the 2017 Battle of Marawi, and a later Philippine Army-sourced report listed one .30 caliber machine gun recovered after a 2022 clash with Dawlah Islamiya-Maute Group members in Maguing, Lanao del Sur. The public sources did not identify whether either weapon was a Browning M1919-family gun or another .30-caliber pattern.
RPK/RPK-74, Squad automatic weapon / light machine gun, Infantry WeaponsInfantry WeaponsRPK/RPK-74Squad automatic weapon / light machine gunThe RPK and RPK-74 are Kalashnikov-pattern squad automatic weapons that extend the AK family with a longer, heavier barrel, bipod, and higher-capacity magazines for infantry fire support. The 7.62 x 39 mm RPK paralleled the AKM, while the 5.45 x 39 mm RPK-74 followed the AK-74; Conflict Armament Research later documented both RPK and RPK-74 examples in Ukraine, and Amnesty International listed both types among Islamic State machine guns in Iraq and Syria.

Sources

Machine gunPublisher: Encyclopaedia Britannica | Note: Supports machine-gun background, classification, operating principles, and broad rate-of-fire specification context. | Accessed: 2026-07-04Small Arms Survey: Weapons Identification - Small ArmsPublisher: Small Arms Survey | Note: Supports light and general-purpose machine-gun role classes, feed systems, belt types, operating-mechanism context, and postwar GPMG examples. | Accessed: 2026-07-04Small Arms Survey: Weapons Identification - Light WeaponsPublisher: Small Arms Survey | Note: Supports heavy machine-gun classification, crew-served and mount context, and the above-8-mm, below-20-mm heavy machine-gun boundary. | Accessed: 2026-07-04Imperial War Museums: British Maxim machinegunPublisher: Imperial War Museums | Note: Supports Maxim automatic-machine-gun history, recoil operation, and belt-feed context for the timeline. | Accessed: 2026-07-04Smithsonian: Gatling gun patent modelPublisher: Smithsonian National Museum of American History | Note: Supports the 1862 Gatling gun patent and its place as a rapid-fire predecessor in the timeline. | Accessed: 2026-07-04Colombia Police Seize Grenades, Dozens of Guns Belonging to DissidentsPublisher: Voice of America / Reuters | Note: Supports 2016 Colombian FARC Dissident Conflict direct use: an M60 machine gun was used by FARC dissident groups in an arsenal the police reported belonged to the dissidents. | Accessed: 2026-07-04AP News: Who builds the weapons that Hamas fighters usePublisher: AP News | Note: Supports 2023 Israel-Hamas War direct use: AP-reviewed imagery from the first three months of combat showed Hamas fighters with a Type 80 machine gun / PKM-T80 copy. | Accessed: 2026-07-04GOV.UK: Royal Navy confirms two new fast patrol boatsPublisher: GOV.UK | Note: Supports the Cutlass-class machine-gun carriage context by reporting that HMS Cutlass and HMS Dagger initially will carry three purpose machine guns. | Accessed: 2026-07-04Royal Navy Gib Squadron Welcomes HMS Cutlass - Your Gibraltar TVPublisher: Your Gibraltar TV | Note: Supports the Cutlass-class machine-gun carriage context by reporting that HMS Cutlass and HMS Dagger are armed with three general-purpose machine guns. | Accessed: 2026-07-04Hezbollah Weapons Captured by the IDF in South LebanonPublisher: Alma Research and Education Center | Note: Supports 2023 Israel-Hezbollah Conflict direct use: machine guns were used by Hezbollah and appeared among captured Hezbollah weapons in IDF-released southern Lebanon footage. | Accessed: 2026-07-04The IDF seized masses of Hezbollah weapons. What do they tell us?Publisher: The Jerusalem Post | Note: Supports 2023 Israel-Hezbollah Conflict direct use: mounted machine guns were used by Hezbollah on vehicles and appeared among weapons seized in Lebanon. | Accessed: 2026-07-04M240B Medium Machine Gun imagePublisher: Wikimedia Commons | Note: Image provenance and licensing page for the primary representative machine-gun image; listed as public domain U.S. Air Force work. | Accessed: 2026-07-04M60 machine gun imagePublisher: Wikimedia Commons | Note: Image provenance and licensing page for a representative M60 machine-gun image; listed as public domain U.S. Navy work. | Accessed: 2026-07-04M2 machine gun imagePublisher: Wikimedia Commons | Note: Image provenance and licensing page for a representative heavy machine-gun image; listed as public domain U.S. Navy work. | Accessed: 2026-07-04