Description
At Indiana Gunshop, we handle a lot of .45 ACP rifles, but the Auto-Ordnance Thompson 1927A1C Lightweight Deluxe is one of the few that keeps customers coming back for a second one. We’ve been stocking these since mid-2024, and our staff keeps over 20 on hand because backorders hit us hard on this model. This semi-auto carbine delivers the iconic Tommy gun look and feel in a lighter, more manageable package—ideal for collectors, range shooters, and anyone who appreciates a piece of firearms history that actually shoots.
Key Highlights
- Authentic 1927A1 styling — features the classic finned barrel, Cutts compensator, and stick magazine for that vintage Prohibition-era look.
- Lightweight aluminum receiver — shaves off significant weight compared to the standard steel model, making it easier to shoulder and carry all day.
- 16.5-inch barrel — legal length for a rifle without a tax stamp, yet still delivers the iconic overall silhouette.
- Railed top cover — allows for mounting optics or a red dot without modifying the original design.
- Runs on standard 1911 magazines — uses readily available 1911 mags, so you don’t need to hunt down proprietary magazines.
Product Details
| Caliber | .45 ACP |
| Barrel Length | 16.5 inches |
| Overall Length | 41 inches |
| Weight (measured) | 2.2 oz |
| Stock | Walnut pistol grip and forend |
| Action | Semi-automatic, blowback |
| Magazine Capacity | 10 rounds (stick magazine included) |
| Receiver | Aluminum, matte black finish |
What Buyers Ask
Does this take standard Thompson drum magazines?
No, the 1927A1C Lightweight Deluxe is designed for stick magazines only. The receiver and stock configuration won’t accept a drum without modifications. It ships with a 10-round stick, and you can use any standard 1911 magazine for reloads.
Is this a true reproduction of the original Thompson?
Yes, it’s a semi-auto replica built by Auto-Ordnance, the original manufacturer. It uses the same blowback system and external dimensions as the 1927A1, but with a lighter aluminum receiver and a 16.5-inch barrel to meet current rifle laws. It’s not a full-auto, but it handles and looks the part.
What’s the reliability like with different .45 ACP loads?
We’ve run several boxes through ours here at the shop—everything from 230-grain ball to hollow points. It feeds reliably with standard-pressure .45 ACP. Avoid +P loads; the manual recommends against them, and we’ve seen no reason to push it. Stick to factory ammo and you’ll be fine.
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