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. 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. The M393 possesses a number of similarities to the M392 it is an air-cooled, gas-operated, magazine-fed, semi-automatic bull-pup rifle, equipped with a smart-link, telescopic, rail-mounted scope with an integrated ammunition counter. While the introduction of the BR55 Battle Rifle did see it supersede the M392 DMR 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 DMR.

Halo dmg br85