The Benelli M2 is a weapon that John Wick used against the High Table forces in John Wick: Chapter 3 - Parabellum.
Description
After clearing an area, John and Charon realized that ordinary bullets are too weak for the Emissaries' armor and went back to the armory to increase their firepower. Charon grabbed the M4 while John went for the M2 and used the 12 Gauge Steel Slugs against the opposing forces.
Gallery
John with his M2
John loading the M2
John quad loading his M2
John in action with his M2