The MP5SD6 is a silenced submachine gun, and is one of the quietest weapons in DayZ. Its noise is barely audible, even by the player while shooting. Because of the low noise and relatively common magazines compared to the other silenced guns, this weapon is one of the best choices for stealth close quarters actions. The main downsides of this gun are its lack of damage, the not so good iron sight, which can be difficult to use for some players, and the low accuracy at long ranges.
It spawns in most military buildings, with the notable exception of the northwest airfield barracks. Its spawn chance is half of its unsilenced variant, the MP5A5. Ammunition has a chance to spawn in most loot locations, with the highest chance being in military spawns.