Action (DA/SA) gun with frame-mounted decocker only and 5″ barrel. S&W 1046: Double Action Only (DAO) gun with 5″ barrel. S&W 1066: Double Action / Single Action (DA/SA) gun with slide-mounted decocker / safety and 4.25″ barrel. S&W 1076: Double Action / Single Action (DA/SA) gun with frame-mounted decocker only and 4.25″ barrel. S&W 1086: Double Action Only (DAO) gun with 4.25″ barrel. Total production numbers According to Smith and Wesson, a total of 50,796 10mm Auto pistols were produced. References 10mm Auto semi-automatic pistols Smith & Wesson semi-automatic pistols