The Auto-Ordnance Thompson 1927A-1 (brand part no. T1BSB) is a .45 ACP short barrel rifle built with a 10.5-inch barrel, continuing the iconic Thompson submachine gun lineage in a semi-automatic, NFA-registered SBR configuration. Auto-Ordnance ships the 1927A-1 with a 20-round stick magazine and adjustable open rear sights. The 1927A-1 favors collectors and shooters who want an authentic, functioning Thompson platform.

Key Specifications

• Chambered in .45 ACP.
• Wears a 10.5-inch barrel, meeting the SBR definition.
• Ships with a 20-round stick magazine.
• Equipped with adjustable open rear sights.
• Operates as a semi-automatic rifle.

Frequently Asked Questions

Is this an NFA item? Yes. As a SBR, it’s a Title II firearm requiring an approved ATF Form 4 and transfer through an NFA-licensed dealer.

What magazine does it ship with? A 20-round stick magazine.

What sights does it use? Adjustable open rear sights.

Buy the Auto-Ordnance Thompson 1927A-1 SBR

This is a Title II item regulated under the National Firearms Act. Purchase requires an approved ATF Form 4, no federal transfer tax, and transfer through a licensed NFA (SOT/Class 3) dealer, with an extended federal approval wait before delivery. Order through Auto-Ordnance‘s short barrel rifles lineup and our Lubbock, Texas team will walk you through the transfer process.