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Terminal.png This article, M247H2 Heavy Machine Gun, was written by Ajax 013. Please do not edit this fiction without the writer's permission.
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M247H2 Heavy Machine Gun
Production information

Misriah Armories


Heavy Machine Gun

Technical specifications

Length:1200 mm Barrel: 630mm

Magazine Size

200, 500, 700, or 1000 round ammo belt

Fire Mode
  • fully automatic
Ammunition Type

12.7x99mm (.50 caliber)

Rate of Fire

750-800 rounds a minute


1900 metres


7600 metres


Necros War


Plasma Cannon (USR), Light Rotary Pulse Cannon (Necros)




The M247H2 Heavy Machine Gun is a UNSC weapon.


M247H2 is a .50 calibre belt fed machine gun that is used by heavy weapon teams to provide suppressing fire for infantry units. The weapon requires a team of two men to carry and operate and uses an adjustable tripod to give it a stable firing position. The M247H2 Is fitted with two spade grips, with independent triggers. Next to the trigger is the on-board control software for the cooling systems and fir control systems, allowing the gunner to electronically adjust the rate of fire and firing mode. It is made from light but resilient polymers with heat-resistant metal alloy components, computer-driven thermal transfer system and a ultramodern on board stabiliser. This means it neither overheats, nor does the barrel require changing for up to seven years and it is accurate even at full automatic fire. The bolt is driven by a small electric motor, with its main fire control unit positioned near the grips. The bolt derives power from a on board rechargeable battery which in turn gains power back from the force gained from recoil generated by munitions. The weapon is belt fed from a attached tin mounted on a removable scoop, with attached tin come in 200 rounds (or variable detached tins of 500, 700 and 1000 rounds) on a nitrocellulose chain with flexible metal links. The weapon is lighter than the AIE and much more adaptable, requiring less space and being much easier to deploy. The weapon features a receiver mounted Misriah Rail. When fired, the bolt travels down the receiver rather than backwards to absorb recoil and direct it away from the shooter. It has fully adjustable and removable day/night iron sights. The weapon has the option to mount a gun shield, which are usually requisitioned for defensive deployments or stationary units.

The cooling system is made up of three Doppler Shift cooling banks, controlled by a central computer unit. These capture heat coming from the barrel and bolt and cool it via the doppler shift, allowing the gun to stay cool, even under constant operation. There is a cooling bank on each side of the barrel and one on the breech. The Doppler Cooling banks are made up of an array of tiny LASERs that are arranged in opposite directions. As excited atoms and molecules enter the cooling bank, they gain photons from the laser they are moving away from, via the doppler effect. These atoms then slow to a crawl, due to the cancelling effects of the gained photons and are subsequently chilled. As the barrel continues to heat up, due to thermodynamics, the heat will move from a place of high temperature to a place of low temperature, constantly cooling the weapon until equilibrium is made. As the weapon cools down, the opposite becomes true, with the molecules within the bank moving to warm up the weapon as it drifts below equilibrium. The banks are powered by the anti-recoil systems, by thermal absorbing energy circuits and in the case of extreme colds, an external battery pack, about the size of a chatter pad. These cooling systems are controlled by a central CPU, which observes the warmest or coldest elements of the weapon and attempts to regulate this.


The M247H2V is the vehicle mounted version. It is mounted on It is fired via electronic signals. This allows them to be mounted as remote operated turrets.

The M247H2B is a heavily modified variant for use by Wolf exoskeletons. Commonly referred to as the 'fifty rifle', it uses a detachable thirty round box feed, or larger fifty round detachable box, with a heavily modified trigger big enough for use by a Wolf and features a reinforced stock. It has a centreline scope with wireless computer link and four times variable zoom, with thermal enhanced nightvision capabilities. The gun is used as the standard assault rifle of Wolf units, giving them excessive amounts of fire power.

UNSC Remarks

Individual and Crew Served Weaponry of the UNSCDF


M6L Personal Defence Weapon System | M57 Pistol | M98 Compact | M19 Modular Pistol

Submachine Guns

M20A Submachine Gun | M12 Special Operations Carbine | M8Z Submachine Gun

Assault Rifles, Carbines, and Battle Rifles

MA6A Individual Combat Weapon System | M2A Carbine | M81 Special Purpose Carbine | M55C Enhanced Battle Rifle

Designated Marksman Rifles

M396 Designated Marksman Rifle | M97 Special Purpose Rifle | M113 Special Purpose Rifle

Machine Guns

M397 Individual Automatic Rifle | M739C Squad Automatic Weapon | M122 Light Machine Gun | M247B2 General Purpose Machine Gun | M247H2 Heavy Machine Gun | AIE-486K1 Heavy Machine Gun | M343A3 Heavy Machine Gun | M780 Special Purpose Machine Gun

Sniper Rifles

M22 Scout Rifle System | M818D Enhanced Modular Sniper Rifle System | M1091 Sniper Rifle System | Sniper Rifle System 99G-S6 Anti-Materiel | M99CA1 Special Application Scoped Rifle | M133 Precision Anti-Materiel Energy Weapon System


M45F Close Assault Weapon System | M108A1 Close Assault Weapon System | M77 Extreme Close Quarters Combat System

Energy Weapons

Weapon/Anti-Vehicle Model 6B Grindell/Galilean Nonlinear Rifle | MX4 Light Support Weapon | M921 ARC

Non-Lethal Weapon

M2 Threat-Negation Device | MX9 Pulsed Energy Projectile System | M39 Long Range Tranquillizer Rifle

Missile and Rocket Launchers

M41B2 Medium Anti-Vehicle/Assault Weapon | M899 Light Anti Armour Weapon | M57 Light Multipurpose Assault Weapon | M1 Multiple Launch Rocket System | M25 Underslung Rocket Launcher

Grenade Launchers

M319N Individual Grenade Launcher | M23 Multiple Grenade Launcher | M363B RPD | M460C Automatic Grenade Launcher | M556 Counter Defilade Grenade Launcher | M24 Underslung Grenade Launcher | M26 Grenade Launcher Module


M71 Mortar | M78 Mortar | M81 Mortar


M117 Light-Weight Field Howitzer

Sentry Guns

M55 GUARD DOG Sentry Gun | M601 GARGOYLE Sentry Gun


M9 Dual Purpose/High Explosive Grenade | M2 Anti-Materiel Grenade | M70 Flash Bang Grenade | M43 Smoke Grenade

Anti-Personnel and Anti-Armour Mines

M320 Anti-Tank Mine | M341 Anti-Tank Mine | M362 Anti-Tank Mine | M121 Bounding Anti-Personnel Mine | M127 Anti-Personnel Mine

Explosive Devices

C-7 Foaming Explosive | C-13 Gertex | C-14 Plastic Explosive | C-15 Liquid Explosive | M303 Thermite Cord | M311 Detonation Cord | M382 Special Munition Attack Charge (Kinetic) | M390 Breaching Charge | M394 Clearance Charge | M404 Special Lightweight Attack Munition | M366 Demolition Charge | M376 Satchel Charge | M379 Explosive Pack

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