Description
Few firearms turn heads at the range like a Thompson, and the Auto-Ordnance 1927A1 SBR is the one that gets the proportions right. Where the standard carbine stretches things out with a 16.5-inch barrel, this short-barreled rifle wears the 10.5-inch barrel that gives the Tommy Gun its unmistakable silhouette. It is the closest thing Auto-Ordnance builds to the original in dimensions and weight, complete with the finned barrel, Cutts-style compensator, and that deep blued steel finish that photographs never quite do justice.
Built Like They Used To Build Them
There is nothing stamped or polymer about this rifle. The frame and receiver are machined from solid steel, and the buttstock, pistol grip, and vertical foregrip are genuine American walnut. That construction puts the weight around 11.5 pounds, which sounds like a lot until you touch off a round of .45 ACP and feel almost nothing come back at you. All that steel soaks up recoil, so follow-up shots stay quick and the whole experience is smooth. Auto-Ordnance builds these in Worcester, Massachusetts, and current production ships with the squared bolt handle.
Shooting the 1927A1 Thompson SBR
Unlike the open-bolt originals, this Thompson is semi-automatic and fires from a closed bolt, which helps with practical accuracy. A blade front sight pairs with an adjustable rear so you can dial things in, and .45 ACP is a pleasant, easy-to-find cartridge that keeps range days affordable by centerfire rifle standards. A 20-round stick magazine comes in the box, and the receiver accepts both stick and drum magazines, so adding a 50-round drum later is an easy way to complete the look.
A Piece of American History You Can Run
Auto-Ordnance is the name John T. Thompson founded back in 1916, and today the company keeps that legacy going under the Kahr Firearms Group. Whether you are a collector filling a serious gap, a history buff who wants the gun from every Prohibition-era photo, or someone who simply appreciates walnut and blued steel done right, the 1927A1 Thompson SBR delivers the genuine article in a configuration you can enjoy for decades.
Key Specifications
- Manufacturer: Auto-Ordnance (Kahr Firearms Group)
- Model: 1927A-1 Deluxe SBR
- Manufacturer Part Number: T1SB
- UPC: 602686271004
- Caliber: .45 ACP
- Action: Semi-Auto, fires from a closed bolt
- Barrel Length: 10.5 in (12 in with compensator)
- Capacity: 20 rounds (accepts stick and drum magazines)
- Frame/Receiver: Machined solid steel
- Stock: Genuine American walnut with vertical foregrip
- Finish: Blued steel
- Sights: Blade front, adjustable rear
- Weight: Approx. 11.5 lbs
- Country of Origin: USA (Worcester, MA)
What’s Included
- Auto-Ordnance 1927A1 Thompson SBR
- One 20-round stick magazine
- Owner's manual
Frequently Asked Questions
Does the 1927A1 Thompson SBR accept drum magazines?
Yes. The T1SB accepts both stick and drum magazines, so you can run the included 20-round stick or add a drum down the road. A lot of owners pick up a 50-round drum just to complete the classic look, and the stick mags stay lighter and handier for regular range work.
What is the difference between this and the standard 1927A1 carbine?
The barrel length. The standard carbine uses a 16.5-inch barrel, while this SBR wears the 10.5-inch barrel that matches the original Thompson's dimensions and weight almost exactly. If you want the authentic profile from the history books, this is the version that nails it.
Is the Thompson SBR full auto or semi-auto?
This is a semi-automatic rifle that fires from a closed bolt, one trigger pull per shot. The closed-bolt design also tends to help accuracy compared to the open-bolt originals. You get the look, feel, and heft of the classic without the machine gun price tag.
What ammo runs best in the Auto-Ordnance Thompson?
Stick with quality brass-cased .45 ACP. Auto-Ordnance specifically advises against steel-cased ammo in their Thompson long guns, and these rifles tend to run happiest on standard pressure 230 grain ball. The rifle's 11.5 pounds of steel and walnut soak up recoil, so shooting it is remarkably soft.





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