The JTS Group M12AK is a gas-piston style semi-automatic shotgun designed to conform to an AK-style platform sharing the ergonomics and aesthetics.This particular model features an 18.7" chrome-lined barrel that is threaded for Remington chokes.The three-inch chamber is compatible with both 3" and 2 3/4" shotshells. The four-position gas system features adjustments should you need to make a change for a specific picky or light load.It runs off of a detachable box magazine and comes standard with polymer synthetic furniture.Features / SpecsJTS Group M12AKGas Piston Semi-Automatic ShotgunCaliber: 12-Gauge3" Chamber (Accepts 2 3/4" and 3" Shotshells)18.7" Chrome-Lined BarrelCylinder Choke (Rem Choke Compatible)Four-Position Gas System for Adjustments Based on LoadsFive-Round MagazineDetachable Box MagazineLeaf-Style Rear SightPicatinny Top Rail CoverStandard AK ControlsPolymer Synthetic ForendPolymer Synthetic StockPolymer Synthetic Pistol GripOverall Length: 39.37"Matte Black Finish