The Smith & Wesson Model 940-3 is a double-action-only revolver chambered in 9mm with a 2.17-inch barrel. It has a satin silver stainless finish, rubber grips, and XS night sights. The cylinder holds 5 rounds and the package includes 3 moon clips for 9mm headspacing. 
 

Key Specifications 

• Brand: Smith & Wesson 
• Model: 940-3 
• Caliber: 9mm 
• Action: Double Action Only 
• Capacity: 5 rounds 
• Barrel Length: 2.17 inches 
• Color/Finish: Satin Silver 
   

Detailed Features 

• 5-shot cylinder with moon clip requirement for 9mm cartridges; 3 moon clips included 
• XS night sights for low-light target acquisition 
• Rubber grips for recoil management 
• Stainless steel construction with satin silver finish 
• DAO trigger for consistent pull on every shot

Owners of the Model 940-3 appreciate the combination of a revolver platform with a 9mm chambering, which lets them share ammunition with semi-auto pistols they already carry. The moon clips draw consistent praise for reliable extraction, though some owners find them fiddly to load under time pressure.

The 2.17-inch barrel and DAO trigger make this a purpose-built carry revolver. The XS night sights are generally well-regarded, though shooters who prefer adjustable sights sometimes swap them. Grip feel is a common point of discussion, with some owners preferring aftermarket rubber options over the stock configuration.

Value opinion is mixed. The 940-3 is a niche piece, and finding one at a fair price takes patience. Those who track them down tend to be dedicated to the platform; casual buyers sometimes balk at the cost relative to more common 9mm options.