The M393 Designated Marksman Rifle, more commonly known as the DMR, is a long-range infantry firearm and a successor to the M392 Designated Marksman Rifle.

Overview & Background

While the introduction of the BR55 Battle Rifle did see it supersede the M392 Designated Marksman Rifle as the standard armament within the UNSC Navy, this only resulted in the latter series being retooled to suit a more niche combat role, beginning with introduction of the M393 Designated Marksman Rifle.

The M393 possesses a number of similarities to the M392; it is an air-cooled, gas-operated, magazine-fed, semi-automatic bullpup rifle, equipped with a smart-linked, telescopic, rail-mounted scope with an integrated ammunition counter. Despite both weapons firing identical 7.62×51mm NATO ammunition from fifteen round detachable box magazines, the M393 features a longer barrel than its predecessor, allows it to fire the same rounds at a much higher velocity. This change, facilitated by the scope magnification being increased to 5x (from 3x), allows the M393 to become a powerful medium-to-long range Marksman's rifle, striking a balance between the power and long-range reach of the Sniper Rifle with the ammo capacity and medium-range versatility of the Battle Rifle.

The M393 is the most powerful standard-issue precision rifle issued to the UNSC Marine Corps, second only to the Sniper Rifle in terms of raw sniping power; the high-velocity rounds can travel extreme distances and pack a surprising punch behind them, making the DMR highly adept at damaging energy shields (something which most ballistic weapons struggle against). It is, however, not without its shortcomings; while the DMR is technically a fully automatic rifle, the high-velocity rounds produce a large amount of recoil with each shot, which adversely affects the weapon's accuracy when fired in this manner. This, combined with the high scope magnification, makes the weapon unwieldy and ill-suited for close-quarters combat.

Gameplay Information



  • Good at long range.
  • Moderate damage against shields.


  • Not very reliable at close quarters, unless the player is highly skilled in aiming.
  • If fired at a fast rate, firing rounds could miss.

Developer Information



  • While it has 15 rounds in each magazine like the one seen in Halo: Reach, the design for the DMR is taken from Halo 4.


vde UNSC infantry weapons in SPV3
MA5E Assault Rifle (MA5E/GL)M7 Submachine Gun (M7/S)M247 Machine GunM6G PistolBR54HB Battle Rifle (BR54HB/GL • BR54HB/S)M393 Designated Marksman RifleSRS99C-S2 AM Sniper Rifle (SRS99C-S2 AM/S)M41 Rocket LauncherM91 ShotgunM7057 FlamethrowerM9 Fragmentation Grenade