Silenced Submachine Gun

The Silenced Submachine Gun, much like the regular submachine gun, deals light progressive damage. It holds 48 rounds with 650 in reserve, and has enough accuracy to shoot at medium range. Although it is replaced by the assault rifle or combat rifle in Tier 2, it still has the highest rate of fire. It also has noticeable stopping power. The main drawback to the submachine gun is the high rate of ammo expenditure; most Survivors using a submachine gun will run out of ammo partially through a level if they aren't conservative with their shooting. However, it is great for medium-ranged closed-quarters such as large warehouses and apartments. Its high rate of fire and penetration make it a ranged alternative to the short-ranged shotgun. As with most of the new weapons in the game, Valve has changed the reloading mechanics on this gun to make it more realistic. In addition to changing out the magazines, the character now pulls the gun's bolt back, making it ready to fire.

It is modeled after the Military Armament Corporation M10 submachine gun (colloquially known as the MAC-10) with a suppressor.

Trivia

 * In real life, the MAC-10 is technically considered a machine pistol, not an SMG.
 * With most of the guns in Left 4 Dead, the flashlight is attached to the gun as standard. This gun, however, has the flashlight taped to the side of the gun, as well as having it's supressor held in place with what apears to be metal wire. This gun was obviously victim of a hodge-podge modification job.