M7S SMG

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

— Gunnery Sergeant Edward Buck, giving a run-down of the M7S in the Desperate Measures Video Documentary.

The M7S Submachine Gun^[1] or the Suppressed SMG, is a United Nations Space Command infantry weapon.

Design details

A suppressor attachment located at the tip of the Halo 2-era SMG barrel.

The M7S is a variant of the M7 Caseless Submachine Gun, which fires 5 x 23mm M443 Caseless Full Metal Jacket ammunition. This variant features an external flash and SS/M 49 sound suppressor on the barrel along with a flashlight. Recoil from all but sustained fire is very controllable. Although the M7 submachine-gun is primarily issued to vehicle crews, it is also a favorite of commando teams in its sound suppressed version. Sustained automatic fire tends to cause the muzzle to “walk” upwards as recoil compounds. Submachine guns, while not accurate over long distances, are particularly effective in close quarters. Muzzle flash is significantly decreased, 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 is a good weapon for stealth and hit-and-run missions. Like the regular M7, there is a variant of the M7S that can be loaded with traditional cased ammunition.^[2]^[3]

Changes from standard M7

The M7S is equipped with the SS/M 49 sound suppressor.
The M7S is also equipped with the SLS/V 5B red dot "reflex" sight, making it more effective in dark areas, night and in general close quarters combat.
A flashlight is attached under the suppressor off to the bottom left side of the barrel, similar to the M90.
The magazine capacity has been reduced from 60 rounds to 48. ^[4]
It is more accurate at long ranges.

Trivia

Miscellaneous

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".
Mega Bloks released a set which included an ODST with an M7S. It also included a Jumpack Brute and a Recruiting Station like those encountered in Halo 3:ODST.

Gallery

SMG Concept.jpg

An early render.
Another side view of the model.
Silencedsmg.PNG

The suppressed SMG as it appears in Halo 2 Vista. Note the absence of a red dot sight and a flashlight.
The Rookie wielding an M7S.
The scope of the M7S.
The scope of the M7S, with VISR mode activated.