MA5D assault rifle

The MA5D Individual Combat Weapon System (ICWS) is an assault rifle used by the United Nations Space Command. 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 standard 7.62x51mm FMJ-AP ammunition from a 32-round detachable box magazine. It possesses a built-in ammunition indicator and magnetic compass for orientation similar to that of all other MA5 series rifles. It bears few design differences from the MA5C apart from an integrated muzzle brake.

The MA5D ICWS was in limited service use as early as 2525 when it was issued to officer cadets, drill instructors, and security personnel at the Corbulo Academy of Military Science, as well as Spartan Blue Team. It saw continued use throughout the war, though the MA5's B and C variants remained more common. By 2557 the MA5D had become standard issue. It is now favored due to its ruggedness and ability to withstand the conditions that are often faced on frontier colonies.

Changes from MA37 ICWS in Halo: Reach

 * Heavier but more controllable reticle bloom
 * More damage per round: only 13 shots are needed to kill a fully-shielded Spartan instead of 19.
 * 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.

Changes from Halo 4 to Halo 2: Anniversary

 * Less damage per round, 16 shots are required to kill a fully-shielded Spartan.

Changes from Halo 2: Anniversary to Halo 5: Guardians

 * Can now be zoomed in using the Smart Scope and have its bloom reduced at the cost of added recoil
 * Smaller reticle/higher accuracy
 * The magazine size has been increased from 32 rounds to 36
 * Reload speed slightly increased
 * Headshots now deal 2x damage on unshielded targets.
 * Increased damage, killing in 12-15 rounds, depending on the headshot bonus.

Halo Online
In Halo Online the MA5D comes in several variants.
 * The default MA5D has a 32 round magazine and 352 rounds in maximum reserve ammo.
 * The DMG MA5D does more damage than the standard MA5D at the cost of fire rate. It has a 28 round magazine and 152 rounds in maximum reserve ammo.
 * The ROF MA5D has a faster fire rate for the first five rounds fired, matching the M7 SMG's 900 RPM. It has a 32 round magazine and 304 rounds in maximum reserve ammo.
 * The ADV MA5D is more accurate than the standard MA5D. It has a 32 round magazine and 256 rounds in maximum reserve ammo.
 * The SNP MA5D features a variable-zoom scope similar to the SRS99 series.
 * The MAG MA5D has an increased magazine size.
 * The golden MA5D has superior stats all around. It has a 40 round magazine and 200 rounds in maximum reserve ammo.

List of appearances

 * The Commissioning
 * Scanned
 * Halo 4: Forward Unto Dawn
 * Halo 4
 * Spartan Ops
 * Halo: Spartan Assault
 * Halo: Initiation
 * Halo: Escalation
 * Halo: Nightfall
 * Halo 2: Anniversary
 * Hunt the Truth
 * All Hail
 * The Cost
 * A Hero Falls
 * The Hunt Begins
 * Halo: Spartan Strike
 * Halo: Last Light
 * Halo: The Fall of Reach - The Animated Series
 * Halo 5: Guardians
 * Halo Online