The Kahr Arms CW40 is a subcompact semi-automatic pistol chambered in .40 S&W, with a polymer frame and matte stainless slide. It weighs 16 oz, measures 6.36 inches overall, and holds 6 rounds. Ships new in box. 
 

Key Specifications 

• Caliber: .40 SW 
• Capacity: 6 rounds 
• Condition: New in Box 
• Finish Color: Black 
• Frame Material: Polymer 
• Manufacturer: Kahr Arms 
• Model Number: CW4043 
• Type: Semi-Auto Handgun 
• Weight: 16 ounces (1 pound) 
• Total Length: 6.36 inches 
   

Features 

The CW40 runs a double-action-only trigger with a smooth, consistent pull, no external hammer to snag on clothing during a draw. The 406 series stainless slide sits over a polymer frame, keeping the package light at 16 oz. Sights are a fixed front blade with an adjustable rear, which gives you some point-of-impact adjustment without added complexity. The subcompact size is the main draw: 6.36 inches overall makes it genuinely concealable in a variety of holster positions. 
 

Use Cases 

The CW40 is built for concealed carry. At 16 oz and .40 S&W caliber, it's compact but not underpowered, which is the trade-off the CW40 makes versus 9mm subcompacts. It also works for home-defense drawer or safe storage where size matters. Range shooting is possible but the small frame and .40 S&W recoil make extended sessions more of a workout.

The Kahr CW40 gets generally positive reviews from concealed-carry users, with consistent commentary on the recoil and magazine capacity tradeoffs.

Owners who carry it daily appreciate the compact size, light weight, and smooth DAO trigger. The ergonomics get positive feedback. The grip fits most hands well for a gun this small, and the trigger pull is consistent across the board. Reliability is a regular positive; most owners report it feeds and cycles without issues once past the recommended break-in period.

The recurring criticisms are the 6-round capacity and .40 S&W recoil in a 16 oz frame. Six rounds is on the low end for a defensive pistol, and buyers coming from 9mm subcompacts with higher capacity will notice it. The recoil from .40 S&W in a light polymer subcompact is noticeably snappy, not uncontrollable, but faster follow-up shots take more effort than from a larger, heavier pistol. A few owners also report feeding hiccups during break-in with certain hollow-point loads, which is why Kahr specifies a 200-round break-in period.

For buyers who specifically want a .40 S&W in a very compact, light package and are comfortable with the capacity and recoil tradeoffs, the CW40 is a solid option.