The Smith & Wesson Model 642UC is a J-Frame double-action revolver chambered in .38 Special with a 1.88-inch barrel and a 5-round cylinder. The Ultimate Carry version has a smoothed action, night sights, and stainless steel construction with rubber grips. It is a compact carry revolver optimized for concealed use. 
 

Key Specifications 

• Brand: Smith & Wesson 
• Model: 642UC 
• Caliber: .38 Special 
• Action: Double Action 
• Capacity: 5 rounds 
• Barrel Length: 1.88 inches 
• Color/Finish: Stainless Steel 
   

Detailed Features 

• J-Frame platform with 1.88-inch barrel for deep concealment 
• Smoothed double-action trigger on the Ultimate Carry variant 
• Night sights for low-light use 
• Stainless steel frame and cylinder in silver finish 
• Rubber grips included

The 642UC is well-regarded among concealed-carry users who want a no-snag, lightweight revolver. The smoothed action is the defining feature of the Ultimate Carry variant, and most owners find the trigger noticeably more refined than the standard 642 out of the box. Night sights are a practical addition for a carry gun and appreciated by those who don't want to source aftermarket sights.

The 1.88-inch barrel means .38 Special velocity is reduced, and owners acknowledge this is a tradeoff for concealability. Recoil with standard loads is manageable; with +P ammunition it gets sharp, and the rubber grips help but don't eliminate the snap. Some shooters swap to a different grip material for longer range sessions.

The 5-round capacity draws periodic criticism compared to semi-auto alternatives, but most owners accept it as inherent to the J-Frame platform. The 642UC holds its value well on the used market, which is a reasonable indicator of long-term owner satisfaction.