The Kahr P40 is a compact .40 S&W pistol with a double action only trigger, sized for concealed carry. At 3.6 inches of barrel and a 7+1 capacity, it hits the typical tradeoff for compact .40s: enough power for self-defense, but in a package that disappears under a cover garment. 
 

Key Specifications 

• Model: Kahr P40 
• Caliber: .40 S&W 
• Action: Double Action Only (DAO) 
• Capacity: 7+1 rounds 
• Barrel Length: 3.6 inches 
• Overall Length: 10 inches 
   

Detailed Features 

• TruGlo Night Sights: Tritium sights make low-light target acquisition faster and more reliable. 
   
• Textured Black Polymer Grip: The grip texture is aggressive enough to hold securely in sweaty or wet conditions without being uncomfortable during extended range sessions. 
   
• Serrated Matte Stainless Steel Slide: The serrations on both front and rear give good purchase for press checks and slide manipulation. Stainless holds up better than blued steel in humid environments. 
   
  The DAO trigger is long but consistent. Once you learn the reset, the pull becomes predictable.

Owners of the Kahr P40 generally like it for carry, with some reservations worth knowing upfront.

The compact size and light weight come up constantly in positive reviews. For a .40 S&W pistol, it carries well and conceals easily. Reliability and accuracy at practical ranges are usually rated positively. The TruGlo night sights are well-regarded for a factory-included upgrade.

The criticisms are consistent too. The DAO trigger pull is heavier than many shooters expect, and it takes range time to feel natural. Magazine capacity is on the low end for the class. A minority of users report feeding or ejection issues with certain ammunition, so it is worth testing your carry load thoroughly before trusting it.

Overall, the P40 is a solid compact carry gun for shooters who have put time in with it. New shooters may find the trigger a harder adjustment.