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Terminal.png This article, M396 Designated Marksman Rifle, was written by Ajax 013. Please do not edit this fiction without the writer's permission.
"Battle rifle? Battle rifle?! Battle rifles can't penetrate armoured vehicles! This thing is a fucking cannon!"
―Anonymous Marksman

M396 DMR
Production information

Designated Marksman Rifle

Technical specifications
  • Barrel
    • 736 mm
  • Weight
    • 5.1 kilograms
  • Length
    • 975 mm
Magazine Size

15 rounds

Fire Mode
  • Semi-Automatic
  • Automatic
  • Burst
Ammunition Type

M657 AP



Rate of Fire

500 rounds per minute


1270 metres (1710 meters with scope)


2600 metres


Necros War




The M396 Designated Marksman Rifle is one of the most powerful infantry firearms utilised by the UNSC. Replacing the M395 DMR, the M396 is it's direct successor, sharing many components and design features. The rifle is heavier than most other infantry firearms, though using light composite metals and polymers reduced this weight. The rifle uses the massive 10.2x51mm round, which can cause horrendous damage on impact.


The Weapon is mainly designed as a Designated Marksman weapon, so a soldier on a squad based level can increase his squads effective range from 1000 metres to 1700 metres, a range usually associated with sniper rifles. The large round is incredibly potent, being capable of penetrating several enemy soldiers before coming to a stop. The weapon is most effective in burst and semi automatic fire, though full automatic fire is effective at close range, making mincemeat of whole squads in close quarters. Also, with the addition of specialist ammo, such as the the M640 X-HEAP, the M642 Incendiary round and the M643 High Explosive Incendiary Armour Piercing round allow it to become a mild anti-armour and anti-material rifle, capable of dealing damage to armour vehicles with armour under 60mm thick and destroying enemy equipment. The rifle is fitted with four accessory rails, allowing it to fit scopes, increasing its range and accuracy, range finders, bipods and grips.


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The M396 DMR is closely modelled on its predecessor, the M395 DMR, sharing almost 70% of components, as well as sharing 50% of components with its cousin, the M397 Individual Automatic Rifle, allowing a degree of commonality. The rifle, as such, shares many characteristics with its predecessor, such as high accuracy and stability, above average recoil and devastating effects on armoured targets.

The gas operation action has a short stroke gas piston, located above the barrel. The gas piston has its own return spring. Gas system is designed for firing in adverse conditions. The machined bolt carrier rides inside the receiver on the two parallel titanium guide rods, with the single return spring placed above and between the guide rods. The typical rotating bolt has 7 lugs that locks into the titanium insert in the receiver, just behind the barrel breech. When fired, the bolt travels down the receiver rather than backwards to absorb recoil and direct it away from the shooter. It features full adjustable/removable front and rear day/night sights.

The heavy barrel features a 1:7 twist, and is cold hammer forged from heat resistant composites and is lined in chrome, to resist spoiling. The barrel is free floating, so it's accuracy can't be affected by warping to the external components.

UNSC Comments

"Don't try to go 'Spartan' with this gun and spray it everywhere. You'll end up with, at best a black eye from the scope kicking you in the eye, at worst, a broke arm. Or if your in a combat zone, death."

"At Helspont space port the Brutes were running amok in the streets below while we took the high ground with these babies. We were even taking down ghosts with these things!"

"The thing is so fucking heavy! Thank god they come with the option of bipods, it really helps in extended defence or marksman operations."

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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