M7S SMG

"The suppressed M7 -- tears through armor and turns bad guys into chum."

- Gunnery Sergeant Edward Buck

The M7S Submachine Gun, sometimes referred to as the Suppressed or Silenced SMG, is a personal defense weapon issued to UNSC Armed Forces special operators.

Design details
A variant of the M7 SMG, the M7S is equipped with an external flash and SS/M 49 sound suppressor on the barrel along with a flashlight. To assist the user in target acquisition, the weapon is fitted with a SLS/V 5B smart-linked scope. Muzzle flash is significantly reduced, and firing the weapon gives a barely noticeable sound, increasing stealth applications for the M7S Submachine Gun and increasing accuracy from decreased recoil, making the weapon more efficient at medium-long range. It fires 5×23mm M443 Caseless Full Metal Jacket from a reduced 48-round magazine.

Changes from Halo 2 Vista to Halo 3: ODST

 * The weapon lacks an activated laser sight, which is now mitigated to a simple aesthetic on the weapon.
 * The M7S now has a 2× zoom scope, adding more ranged capabilities.

Changes from Halo 3: ODST to Halo 2: Anniversary

 * The magazine size is increased from 48 to 60 and ammo capacity also increased from 192 to 240.
 * The M7S can now be dual wielded, however the player will be unable utilize the guns' scope while dual wielding.
 * The M7S is equipped with a reflex sight that uses a miniature reticule, making it more effective in dark areas and general close quarters combat.

Trivia

 * The M7S made its first in-game debut in the Example multiplayer map, featured in Halo 2 for Windows Vista.
 * The M7S is the starting weapon in most Firefight levels in Halo 3: ODST except for Windward, where the player starts with a sniper rifle instead.
 * The Halo 3: ODST manual erroneously states that the M7S is "a sound-suppressed variant of the M7 rifle".
 * The M7S is the first fully-automatic weapon in the Halo series to have a usable scope.
 * In Halo Wars 2, the M7S SMGs wielded by ODSTs are equipped with laser sights.

List of appearances

 * Halo: First Strike
 * Halo 2 for Windows Vista
 * Halo: Contact Harvest
 * Halo: Helljumper
 * The Life
 * Halo 3: ODST
 * Halo Legends
 * The Babysitter
 * Halo: Evolutions - Essential Tales of the Halo Universe
 * Headhunters
 * Halo 2: Anniversary
 * Halo: New Blood
 * Hunt the Truth
 * Halo: Spartan Strike
 * Halo: The Fall of Reach - The Animated Series
 * Halo Wars 2
 * Halo: Retribution