M4 Tactical with factory telescoping (collapsible) stock for length-of-pull adjustment. Available in civilian markets where SBR regulations do not apply to the 18.5-inch barrel configuration. The telescoping stock is standard on military M1014s. Type: Shotgun Action: Semi-Automatic Caliber: 12 Gauge Capacity: 5 Year introduced: 2002, Italy Weight: 91 oz Overall length: 40" Status: Active Military use: Yes Intended use: Military, Tactical, Law Enforcement