Smith & Wesson 637-1 Airweight .38 Revolver

Posted: 02/05/2026

Smith & Wesson 637-1 Airweight .38 Revolver

The Smith & Wesson 637-1 Airweight is a 14.5-15 oz, 5-shot revolver chambered in .38 S&W Special +P, designed for concealed carry. It features a 1.875″ stainless steel barrel and cylinder paired with an aluminum alloy frame, resulting in an overall length of 6.31″ and a height of 4.3″.

Specifications:

  • Caliber: .38 S&W Special +P
  • Capacity: 5 Rounds
  • Action: Single/Double Action (exposed hammer)
  • Barrel Length: 1.875″ (1 7/8″)
  • Weight: ~14.5 – 15.3 oz (empty)
  • Frame Material: Aluminum Alloy (Silver Finish)
  • Barrel/Cylinder Material: Stainless Steel
  • Sights: Integral Front, Fixed Rear
  • Grips: Synthetic/Rubber (some models feature Crimson Trace Lasergrips)
  • Safety: Internal lock (on most models)
  • Overall Length: 6.31″