The Thompson 1927A1 Deluxe Carbine is a semi-automatic .45 ACP carbine with a 16.5-inch finned barrel, American walnut stock, and a color case hardened finish with a clear protective coat. It holds 20+1 rounds, measures 41 inches overall, and weighs 13 lbs. Sights are a blade front with an open adjustable rear. 
 

Key Specifications 

• Caliber: .45 ACP 
• Action: Semi-Automatic 
• Capacity: 20+1 rounds 
• Barrel Length: 16.5 inches 
• Overall Length: 41 inches 
• Weight: 13 lbs 
• Finish: Color Case Hardened with Clear Protective Coat 
• Stock: American Walnut 
• Sights: Blade Front, Open Adjustable Rear 
   

Features 

 
The 1927A1 is a semi-automatic reproduction of the original Thompson submachine gun configuration. The finned barrel is a period-accurate detail that also helps dissipate heat during extended range sessions. The adjustable rear sight is a practical addition for dialing in at different distances. 
 
At 13 lbs and 41 inches, this is a heavy carbine. That weight comes mostly from the solid walnut stock and the heavy receiver construction, and it does make the gun more stable when shooting from a supported position. Unsupported carry over any distance is tiring. The .45 ACP chambering means ammunition is widely available and recoil is modest given the weight.

Thompson 1927A1 owners generally buy this gun knowing exactly what it is, a historically styled range piece, and most are satisfied with that purchase. The walnut furniture and case hardened finish draw genuine praise for fit and appearance, and people who care about the Tommy gun aesthetic are usually happy with what they get.

On the range, the semi-auto action is smooth and the .45 ACP recoil is soft given the 13 lb frame. Reliability gets solid marks, with owners reporting consistent function across several ammunition types.

Weight dominates the criticism. At 13 lbs, this is not a practical carry gun and most owners acknowledge that. It's manageable at a bench or a static shooting position, but awkward if you're moving around a range course.

Price comes up frequently. The 1927A1 Deluxe costs more than a lot of practical carbines, and buyers who approach it purely on a performance-per-dollar basis often find it hard to justify. Buyers who come to it for its historical look and feel tend to be more satisfied, since that's what the gun actually delivers. Legal considerations around semi-auto Thompson replicas get mentioned occasionally in discussions for buyers in more restrictive states.