The Model 686 Night Guard 2.5-inch is a compact L-frame 7-shot .357 Magnum with an XS Tritium Big Dot front sight, scandium alloy frame, and matte finish optimized for low-light home defense and law enforcement backup. The Night Guard series across S&W frames shares the XS sight system and lightweight alloy construction. The short 2.5-inch barrel and 7-shot cylinder make it one of the most capable compact revolvers ever produced. Type: Revolver Action: Double-Action Caliber: .357 Magnum Capacity: 7 Year introduced: 2009, USA Weight: 30.4 oz Overall length: 8" Status: Discontinued Intended use: Law Enforcement, Home Defense, Concealed Carry