WTS: Pre-May Auto Ordnance M1A1 TSMG Pre-May Dealer Sample. This is an Extremely unusual Thompson as the receiver is cut for a Drum Magazine, it has a Finned BBL, Cutts Compensator, Lyman Adjustable Rear Sights and Vertical Pistol Fore Grip. Condition is new to like new. Appears to be factory original. Provided with one NOS Bridgeport 20 Round Magazine and one NOS Bridgeport 30 Round Magazine. Drum not included. Pre-May DS. FFL/SOT Only. Form 03 in MI. $15,995.00 + ship/ins. reply to: Firearms & Collectables LLC: E-Mail gouldfcllc@hotmail.com. This is a "Keeper" for sole proprietor FFL/SOT's.