The Auto-Ordnance 1927A-1 Deluxe is a semi-automatic rifle chambered in .45 ACP, patterned after the original Thompson submachine gun. The walnut stock and blued finish are period-correct in appearance. The finned 16.5-inch barrel is paired with a compensator that extends overall barrel length to 18 inches; total length is 41 inches. Weight is 13 lbs. The package includes one 100-round drum and one 20-round stick magazine. Sights are a blade front and open rear adjustable. Manual safety is standard. 
 

Key Specifications 

• Model: 1927A-1 Deluxe 
• Caliber: .45 ACP 
• Action: Semi-Automatic 
• Capacity: 100-round drum + 20-round stick magazine included 
• Barrel Length: 16.5 inches (compensator extends to 18 inches) 
• Overall Length: 41 inches 
• Weight: 13 lbs 
• Sights: Blade Front, Open Rear Adjustable 
   

Detailed Features 

• Finned Barrel: Aids heat dissipation during extended firing. 
• Compensator: Reduces muzzle rise. 
• Steel Construction with Walnut Stock: Durable build with classic appearance. 
• Dual Magazine Options: High-capacity drum for sustained fire, stick magazine for compact carry. 
• Manual Safety: Engages and disengages by hand.

The 1927A-1 Deluxe attracts buyers who care about its Thompson lineage. The WWII and Prohibition-era connection is a genuine part of the appeal and comes up in almost every discussion. The walnut finish and overall aesthetic get consistent praise from collectors and historically-minded shooters.

Range performance is generally well-received. The semi-auto action cycles reliably for most users, and the .45 ACP caliber is familiar and trusted. The 100-round drum is popular for its novelty and capacity, though loading it is slower and more awkward than a standard stick magazine. Some owners find the added weight and bulk of the drum worth it for the experience; others prefer the 20-round stick for day-to-day use.

At 13 lbs, weight is the most common practical criticism. Extended range sessions can be tiring, and some owners note the balance shifts noticeably with the drum loaded. Pricing opinions vary; the rifle sits on the higher end and buyers debate whether it's justified relative to more modern semi-auto options. The historical and collector value is the consistent justification. Customization discussion is relatively light. Most owners keep this one closer to stock.