The Sig Sauer P938 is a single-action micro-compact 9mm pistol built for concealed carry. It has a 3-inch carbon steel barrel, 7+1 capacity, and weighs 16 oz (0.91 lbs). The frame is alloy with a black hard-coat anodized finish. SIGLITE tritium night sights are standard. The Hogue rubber grip fills the hand well for the gun's size. An ambidextrous manual thumb safety is included. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: P938 
• Caliber: 9mm Luger (9x19 Para) 
• Action Type: Single Action 
• Capacity: 7+1 rounds 
• Barrel Length: 3 inches 
• Overall Length: 5.9 inches 
• Weight: 16 ounces (0.91 lbs) 
• Finish: Black hard-coat anodized 
• Sights: SIGLITE Night Sights (Tritium) 
   

Detailed Features 

The single-action trigger requires the hammer to be cocked -- the P938 is designed to be carried cocked-and-locked, safety on. At 16 oz and 5.9 inches overall it is among the smaller and lighter options in the micro-compact 9mm category. The SIGLITE night sights provide tritium glow in low light without any additional accessories. The Hogue rubber grip adds traction and cushions the hand during firing. Ambidextrous thumb safety works for both right- and left-handed shooters without modification.

P938 owners consistently cite the size-to-caliber ratio as the main draw -- 9mm in a 16 oz package is genuinely compact, and the SIGLITE night sights are considered a meaningful standard feature at this price tier. Concealment and carry comfort get strong marks.

Recoil is the most common criticism. The single-action platform in a small alloy frame produces a snappier feel than heavier micro-compacts, which some shooters find affects follow-up shot speed. Magazine capacity at 7+1 is noted as a limitation compared to higher-capacity competitors; this is a recurring discussion point without a clear consensus. A minority of owners report a break-in period where reliability with certain ammunition was inconsistent before settling in. Price is viewed as high by some owners relative to competing platforms, though most consider it appropriate given the build quality.