The Remington M870 Modular Combat Shotgun is the military variant of the classic 870, featuring a modular stock system allowing conversion between full-stock, pistol-grip, and compact configurations. Used by special operations for breaching. Type: Pump-Action Shotgun Action: Pump-Action Caliber: 12 Gauge Capacity: 6 Year introduced: 2005, USA Weight: 7.5 oz Overall length: 38.5" Status: Active Military use: Yes Intended use: Military, Law Enforcement, Breaching