Windham Weaponry SRC AR-15 pistol in .300 Blackout with 9-inch barrel, optimized for suppressed subsonic use in a compact pistol configuration. Type: Pistol Action: Semi-Automatic Caliber: .300 Blackout Capacity: 30 Year introduced: 2016, USA Weight: 80 oz Overall length: 26" Status: Active Intended use: Suppressor Host, Home Defense