Smith & Wesson 163603 : DA/SA. Large frame. Hogue rubber grips. Internal lock. Drilled & tapped. Patridge sight. Adjustable black sight. Stainless steel. Glass bead finish finish. Wt. : 43 oz./45 oz.Smith & Wesson\'s large frame revolver is the first choice for handgun hunters and competitive shooters. The Smith & Wesson Model 629 is an N frame single/double action revolver with a black synthetic grip, stainless steel barrel, frame, and cylinder. It has red ramp front and adjustable white outline rear sights, and an overall length of 9.6\". This model has a 4.125\" barrel.