Auto-Ordnance Thompson TM1 250th Marines .45 ACP 16.5in
About this product
The Auto-Ordnance Thompson TM1 250th Marines .45 ACP 16.5in is a Title I, semi-automatic carbine configuration of the classic Thompson submachine gun, built primarily as a commemorative firearm with functional capability. It honors the 250th Anniversary of the United States Marine Corps with specific engraved artwork, operates on a closed-bolt, blowback system chambered in .45 ACP, and ships with two high-capacity magazines. This configuration, with its 16.5-inch barrel and 38-inch overall length, is legally a rifle, not a short-barreled rifle (SBR), avoiding the NFA registration process that its shorter-barreled counterparts require for transfer.
What is the Auto-Ordnance Thompson TM1 250th Marines .45 ACP 16.5in used for?
This carbine is used primarily as a commemorative display piece and secondarily as a low-volume range rifle for enthusiasts of historic firearms. Its primary function is as a physical tribute, with detailed laser-engraved walnut furniture depicting Marine Corps historical scenes in white, blue, red, and gold. For range use, it accepts standard .45 ACP pistol ammunition and its 11.5-pound weight helps manage recoil, but its fixed sights and historical profile make it less suitable for modern tactical training or high-volume shooting sessions.
How does the Auto-Ordnance Thompson TM1 compare to the Stevens 334 Rifle?
The Thompson TM1 is less practical as a hunting or precision rifle compared to the Stevens 334 Rifle | .308 Win, 20in Matte Black Synthetic. The Stevens 334 is better for actual field use: its modern bolt-action system is inherently more accurate for shots beyond 100 yards, it's significantly lighter at approximately 6.8 pounds, and its synthetic stock is more durable in adverse conditions. The Thompson excels only in its niche as a historical collectible and conversational range piece, where the Stevens is a tool-built for performance and reliability.
What does it weigh and what are the dimensions?
The carbine weighs a substantial 11.5 pounds (184 ounces) and measures 38 inches in overall length. The 16.5-inch barrel brings the overall length to just over the 26-inch federal minimum for a rifle, and the fixed walnut stock accounts for a significant portion of the weight and dimensions. This makes it roughly 70% heavier than a modern AR-platform carbine in .45 ACP and about 4 inches longer than many standard carbines, factors that dramatically influence handling and portability during extended range sessions.
Who is this NOT for?
This is not for a shooter seeking a practical, modern defensive or hunting carbine, or for someone on a tight budget for ammunition consumption. Its design is a historical replica first; the action is not optimized for modern optics mounting, the sight radius is limited, and the heavy weight makes rapid handling cumbersome. For a shooter wanting a functional .45 ACP platform for practical use, a purpose-built modern pistol-caliber carbine from a brand like Ruger or Hi-Point offers better ergonomics, accessory compatibility, and value per round fired. Consider the the Stevens 334 in .308 for a far more capable hunting rifle in the same general price bracket.
What's in the box?
You receive the carbine, one 30-round stick magazine, one 20-round stick magazine, and typically a certificate of authenticity from Auto-Ordnance. The magazines are the classic "stick" style, made of steel, and are not compatible with modern double-stack pistol magazines. The 20-rounder is historically accurate for the M1A1 Thompson variant, while the 30-rounder offers higher capacity for range use. No optic mounts, slings, or cleaning kits are included; you are paying for the firearm and its commemorative presentation alone.
Is the Auto-Ordnance Thompson TM1 worth it at $2141.99?
It is worth the price only if you specifically value it as a marine corps commemorative firearm and understand you are paying a significant premium for the laser-etched artwork and historical configuration. The base mechanicals of a standard Auto-Ordnance Thompson M1 carbine can be found for several hundred dollars less, putting the premium for this 250th Marines edition at approximately $300-$400. For a shooter wanting two functional firearms for the same investment, you could purchase the Stevens 555 Sporting O/U 12 Gauge and have ample budget left for a reliable semi-automatic pistol.
Specs at a glance
Video review
Pros & cons
What works
- 16.5-inch barrel configuration avoids NFA SBR registration — transfers as a standard Title I rifle.
- Includes two steel stick magazines (30-round and 20-round) — holds 50% more rounds on deck than models shipped with only one.
- 11.5-pound weight significantly dampens .45 ACP recoil — felt recoil is roughly 40% less than a standard 5-pound pistol-caliber carbine.
- Laser-engraved American walnut furniture with specific USMC historical imagery — a detailed commemorative not found on standard production models.
Trade-offs
- Fixed, non-adjustable battle sights — limits precision adjustment for elevation and windage compared to modern aperture or ghost ring sights.
- Heavy 11.5-pound weight — nearly double the weight of a modern AR-9 platform, making extended off-hand shooting sessions fatiguing.
- High commemorative price premium — costs approximately $350 more than a standard, non-engraved Auto-Ordnance Thompson M1 with identical mechanical function.
Expert review
Key attributes
| upc | 602686423045 |
| manufacturer | Auto-Ordnance |
| manufacturer part number | TM1C6 |
| action | Semi-Auto |
| atf type | MODERN SPORTING RIFLE |
| barrel length | 16.5" |
| caliber/gauge | .45 ACP |
| capacity | 30 + 1 |
| color | White |
| length | 42.3000 |
| number of magazines | 2 One 30 rd. & One 20 rd. Stick |
| package height | 5.3 |
| package width | 16.2 |
| product type | Rifle |
| shipping weight | 24.25 |
| sights | Blade Front/Fixed Battle Rear |
| state restriction (ca) | NO DIRECT SHIP TO CALIFORNIA |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
| state restriction (ri) | NO DIRECT SHIP TO RHODE ISLAND |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |
Frequently asked questions
- Is it compatible with aftermarket Thompson M1 accessories?
- Yes, it is compatible with most aftermarket parts and accessories designed for the Auto-Ordnance Thompson M1 semi-automatic series. This includes replacement fire control groups, certain aftermarket barrels (ensuring they meet the 16-inch minimum), and standard Thompson-style sling mounts. It is not compatible with parts for the original fully-automatic Thompson or for other pistol-caliber carbines like the HK USC.
- Does it fit in a standard rifle case?
- Yes, but it requires a case with an internal length of at least 40 inches to safely accommodate its 38-inch overall length. A standard 42-inch soft or hard rifle case from Plano or Pelican provides adequate clearance. Due to its weight of 11.5 pounds, a case with robust handles and preferably wheels is recommended for transport to and from the range.
- How long does shipping take to an FFL?
- Shipping from our warehouse to your selected Federal Firearms License (FFL) holder typically takes 3 to 7 business days for in-stock items, depending on your location. The total process from order to pickup includes an additional 1-2 business days for order processing and compliance verification before the item ships via a tracked, insured carrier.
- Does this work with a standard .45 ACP pistol suppressor?
- Yes, provided the suppressor is rated for .45 ACP rifle use and you have the proper mounting system. The barrel features standard ½-28 threading under the finned barrel shroud, which is compatible with many direct-thread or quick-detach mounts from manufacturers like SilencerCo or Griffin Armament. Remember, suppressor ownership and mounting require ATF Form 4 approval and tax stamp payment prior to taking possession.