The Smith & Wesson Model 637 Airweight (SKU: 163050) is a lightweight J-frame revolver designed for reliable concealed carry and personal defense. Constructed with a high-strength aluminum alloy frame and a durable stainless steel barrel, this compact firearm weighs just 15 ounces empty, making it ideal for all-day carry. The 637 features a 5-round cylinder and operates in double-action-only (DAO) mode, ensuring a smooth and snag-free draw from pockets or holsters. Its 1.88-inch barrel provides excellent accuracy while maintaining a compact profile.