Alexander Arms Standard Semi-Auto Rifle .300 AAC Blackout 16 Barrel (1)-30Rd Magazine Synthetic Stock Black Finish - FEATURES: - 16 Barrel - 1:8 Twist Rate - 5/8-24RH Threading - Thread Protector Included (Upgrade Options Below) - Standard AR Trigger - M4 stock - A2 Grip - Direct impingement operating system - One 30 Round Magazine (Unless Restricted by Your State) - Alexander Arms Soft Carry Bag - Weight of rifle is 6.25 pounds - Manufacturer Alexander Arms - Barrel Length In Inches 16 - Caliber .300 Aac Blackout - Checkering No - Detachable Magazine Yes - Hinged Floorplate No - Magazine Capacity 30 - Metal Finish Colored - Newitem Yes Other - Features: Lar Alexander Arms Branded Hand Guardefx Stocka2 Grip Mil-spec Triggera2 Flash - Hideranodized Finish - Overall Length In Inches 33 - Rate Of Twist 1:7 - Recoil Pad No - Sights No - Stock Material Synthetic - Swivel Studs No - Type Action Semi-automatic - Weight In Pounds 6.54 - Dimension 3.80 X 12.30 X 39 - Height 3.8 - Width 12.3 - Length 39 - Stock Color Black - Metal Color Black