Auto Ordnance T150DCR : Auto/ordnance-thompson Thompson 1927A-1 \"Deluxe Semi-Auto\" Hard Chrome Plated Shipped with 50 round drum magazine and 20 round stick magazineAction : Semi Auto - Caliber : .45 ACP - Capacity : 20/50 - Finish : Hard Chrome Plated - Stock/Grip : Fixed Walnut - Sights : Blade/Adjustable - Barrel Length : 16.5 - Overall Length : 41 - Weight : 13 lbs. - All the classic details of the time honored original are reproduced in today\'s semi-auto Thompson. The frame and receiver are machined from solid steel or aluminum. The wood is genuine American walnut. This .45 caliber carbine features a 16 1/2 finned barrel compensator and is available with a blued steel receiver or a lighter weight aluminum receiver. This configuration is our most popular model.