The final wartime revision of the Thompson Submachine Gun, the M1A1 was on paper made obsolete by the M3/M3A1, but would continue to serve as late as the Vietnam War. Blade front and fixed peep rear sights, with a "S" marked horizontal handguard, and an "A.O.C." marked machined receiver with "GHD" and "AO-44" stamps. A mixed number has been struck over on the trigger housing, with dual control switches, an "AA" marked fixed buttstock, grooved pistol grip and tan canvas "Nobuckl" sling. Bolt is M1A1 pattern, with a fixed firing pin on the bolt face and no provision for a Blish lock or oiler. Included with the lot are two extra magazines.

Very good as arsenal assembled, with 95% of the refurbished parkerized finish, showing some mild edge wear an handling marks. The wood is good as repaired, with pin-stabilized cracks, areas of filler, minor chips and light scuffs. Mechanically excellent. NOTE: This weapon is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) that is classified as a "Curios or Relic" as defined in 27 CFR, 478.11. These weapons are still subject to the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 479.