MP5SD5 

The name for Heckler & Koch's infamous weapon. From the MP5 series.

The MP5SD5, chambered for 9mm, is really an MP5 with a pre-built suppressor of excellent quality. It is used most commonly by counterterrorist forces. Terrorists fear this weapon because of its clandestine capabilities and all-around great performance in the field.

"I want one, but it's automatic. -_-"
-me

MP5SD5 by Dave February 3, 2004

MP5-SD5 

noun -- Submachine gun with integral silencer. Machine Pistole made by Heckler and Koch.

That mofiglio was bustin' off caps on his MP5-SD5 all day.

MP5-SD5 by Hans September 22, 2003