The Auto-Ordnance 1927A-1 is a semi-automatic pistol-caliber carbine chambered in .45 ACP with an 18-inch barrel. This Roaring 20s edition is engraved and includes a 50-round drum magazine and a 20-round stick magazine. 
 

Key Specifications 

• Brand: Auto-Ordnance 
• Model: 1927A-1 
• Caliber: .45 ACP 
• Action: Semi Auto 
• Capacity: 50+1 
• Barrel Length: 18 in 
   

Detailed Features 

• 18-inch barrel 
• Engraved receiver with Roaring 20s theme 
• 50-round drum magazine included 
• 20-round stick magazine included 
• Semi-automatic operation

The Auto-Ordnance 1927A-1 draws owners who appreciate the period aesthetic as much as the function. The Roaring 20s edition adds engraving that owners frequently describe as well-executed for the price, and the .45 ACP chambering keeps it in a caliber with broad availability.

Reliability with the 50-round drum magazine is the most common discussion point. Owners report that the drum functions best when kept clean and properly wound, and that casual maintenance habits produce feed failures. The 20-round stick magazine is generally described as more consistent for range sessions.

The 1927A-1 is heavy, and that splits owners. Some find the weight part of the experience; others note that extended range sessions become fatiguing. The price puts it above purely practical .45 ACP options, so most buyers are motivated by the collector angle or Thompson legacy rather than utility.