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Terminal This article, M780 Special Purpose Machine Gun, was written by Ajax 013. Please do not edit this fiction without the writer's permission.
"The moment you start spooling it up, and it produces that whine... you know the world is about to go to fucking hell."
―Anonymous Marine


M404side
M780 SPMG
Production information
Type

Special Purpose Machine Gun

Technical specifications
Size
  • Barrel
    • 510 mm
  • Weight
    • 18.1 kilograms (unloaded), 22.5 kilograms (loaded)
  • Length
    • 713 mm
Magazine Size

variable/belt fed

Fire Mode
  • Automatic
Ammunition Type

6.8x32mm M76 SAP

Operation

gas-operated

Rate of Fire

3500 rounds per minute

Accuracy

560 metres

Range

860 metres

Usage
Era(s)

Necros War

Affiliation

UNSC

  [Source]


The M780 Special Purpose Machine Gun, also fondly known as the Growler, is a special purpose weapon, issued in special circumstances to medium machine gun teams.

Uses

The Growler is issued to UNSC Special forces as a light weight alternative to heavier machine gun, producing an intense amount of suppressing fire. The weapon is too heavy for regular infantry units, but for special forces operators with SOCOM cybernetics package and SPARTANS with augmented strength it is much easier to carry. The Growler is often used in urban environments where there is little consideration for collateral damage, where the massed fire power becomes most effective.

Operation

The weapon utilises a three barrel rotating assembly powered by a small, long lasting hydrogen battery. The primary firing chamber is aligned with a Misriah Kinetic Suppressor system, which is in turn aligned to counter the torque produced by the motor assembly, with both systems being linked up to LAIRD providing a stable platform for firing. The gun is fed by a linkless feed and can be connected to a 'battle box' consisting of five hundred rounds, directly bolted onto the gun, or a 1500 round bag set that can be carried on the users back. The linkless feed can be augmented with a vinyl cover to protect it from the elements. The weapon is set up in a relatively conventional manner, with a trigger carrying a thumb operated spooling button and finger operated safety, adjustable skeleton stock, internal motor, self-sufficient power supply and cooling battery. The gun is fully ambidextrous, with the ability to swap which side the belt feed is on. Optimally it requires two men to operate, with one man reloading and providing cover for the encumbered operator. The weapon is fitted with a carrying handle and three Misriah Rails, one on the Receiver and one on each side of the barrel.

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.

UNSC Comments

Individual and Crew Served Weaponry of the UNSCDF
Assault Rifles

MA6A Individual Combat Weapon System | M2A Carbine

Battle Rifle

M55C Enhanced Battle Rifle | M396 Designated Marksman Rifle

Machine Guns

M397 Individual Automatic Rifle | M739C Ultra Light Machine Gun | M122 Light Machine Gun | M389B General Purpose Machine Gun | M247H2 Heavy Machine Gun | AIE-486I Heavy Machine Gun | M780 Special Purpose Machine Gun

Submachine Guns

M20A Submachine Gun | M12 Special Operations Carbine

Shotguns

M90D Close Assault Weapon System | M108A1 Close Assault Weapon System | M77 Extreme Close Quarters Combat System

Sniper Rifles

M113 Scout Rifle System | M1091 Sniper Rifle System | Sniper Rifle System 99G-S3 Anti-Materiel | Sniper Rifle System 40A-O Anti-Materiel/Anti-Vehicle | M99CA1 Special Application Scoped Rifle

Pistols

M6L Personal Defence Weapon System | M57 Pistol

Energy Weapons

Weapon/Anti-Vehicle Model 6B Grindell/Galilean Nonlinear Rifle | MX4 Light Support Weapon | MX12 Directed Ion Energy Rifle | 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 | M556 Counter Defilade Grenade Launcher | M460C Automatic Grenade Launcher | M24 Underslung Grenade Launcher | M556 Counter Defilade Grenade Launcher | M26 Grenade Launcher Module

Mortars

M71 Mortar | M78 Mortar | M81 Mortar

Howitzers

M117 Light-Weight Field Howitzer

Sentry Guns

M55 GUARD DOG Sentry Gun | M601 GARGOYLE Sentry Gun

Grenades

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

Angel Arm Specialties

Angel Arm Special 33 | Angel Arm Cutlass | Angel Arms Supreme Commander

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