Auto Ordnance Thompson Model 1927-A1, .45 cal. semi-auto carbine. Serial #KD3460. Excellent condition. 20" finned barrel has excellent bore and blue with compensator. Aluminum receiver has 98% blue finish, one ding in front of receiver. Folding adjustable rear sight. Walnut front grip, hand grip and butt stock are excellent. Complete with one 30 round stick and one 50 round drum magazine. The gun that made the 20's roar!