MA5D assault rifle

The MA5D Individual Combat Weapon System (ICWS) is a gas-operated assault rifle used by the UNSC Defense Force. Like the rest of the MA5 Series, the MA5D is designed and manufactured by Misriah Armory.

Overview
The MA5D Assault Rifle is an air-cooled, gas-operated, magazine-fed, fully-automatic bullpup rifle that fires 32 rounds of 7.62x51mm ammunition. It possesses a built-in ammunition indicator and magnetic compass for orientation similar to that of all other MA5 series rifles.

Service history
The MA5D ICWS was in limited service use as early as 2526; it was issued to officer cadets, drill instructors, and security personnel at the Corbulo Academy of Military Science. By the summer of 2557, the MA5D had become the standard-issue service rifle of the Marine Corps and the Navy. It replaced the MA5B and MA5C variants, primarily the latter, which were in service throughout the Human-Covenant War.

Differences from the MA37 ICWS in Halo: Reach

 * Heavily revamped appearance, resembling the MA5C from Halo 3.
 * New sound effects.
 * Heavier but more controllable reticle bloom.
 * More damage per round, returning to the classic 16-round kill on a fully-shielded SPARTAN.
 * Slightly increased rate of fire.
 * Maximum reserve ammo has been reduced from 288 rounds to 256 rounds, and a standard reserve of 224 rounds, forcing the player to scavenge for ammo more frequently.

Videos
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List of appearances

 * The Commissioning
 * Halo 4: Forward Unto Dawn
 * Halo 4