The Luger P.09 is a non-canon, three-round burst handgun featured in some fanon maps.
Brutal War: After Effect
The Luger P.09 appears as a sidearm in Camalex97's Modern Warfare: Brutal War: After Effect. It is called the Luger P09 due to its modifications that include three round burst and a 15 round magazine. When Pack-A-Punched it becomes the Luger P115 which has a 30-round clip, fully automatic, and has an ACOG Scope aswell.