Thompson Model 1927A-1 With Detachable Buttstock .45 ACP Carbine 16.5 Inch Barrel Blue Finish Walnut Stock Includes 50 Round Drum and 30 Round Stick Magazines. Semi-automatic carbine version of the famous Thompson submachine gun. Solid milled steel receiver. Finned barrel with compensator. Adjustable rear sight. Walnut stock and vertical foregrip. Blued. 50 round drum magazine and 30 round stick magazine.