These models are similar to the one you are viewing.
.22 LR cal., this model was developed because the government needed a training pistol similar to the Colt Model 1911 .45 ACP, the result was a Model HD with external safety and fixed sight, 4 1/2 in. medium weight barrel, the barrel is marked "Property of USA", black checkered hard rubber grips, first models mfg. had high gloss blue finish, changed to a parkerized finish around ser. no. 128,000 to 130,000. Approx. 34,000 mfg. 1943-1945. C-R.
.45 ACP cal., patterned after the Colt M1911, large frame, SA, 5 in. barrel, 8 shot single stack mag., alloy (disc. 2006), steel or stainless steel frame, steel slide, matte, blue/black (new 2005) or Clear Coat finish, patented S&W firing pin safety release activated by the grip safety, pinned-in external extractor, Wolff springs throughout, Texas Armament match trigger, Hogue rubber (standard) or wood (new 2004) grips, McCormick hammer and thumb safety, Briley barrel bushing, two Wilson magazines, full-length heavy guide rod, high profile Wilson beavertail safety, adj. rear black blade, or Novak Lo-Mount Carry sights, 39 oz. Mfg. 2003-2011.
.45 ACP cal., DA/SA 4 1/2 in. barrel, oversized trigger, aluminum frame with stainless steel slide, 8 shot single column mag., KP90 or decocking (KP90D), polymer grips, 3-dot fixed sights, ambidextrous safety began approx ser. no. 660-12800. Mfg. 1991-2010.
9mm Para. (new 2016) or .45 ACP cal., SA, 5 in. barrel, forged stainless steel slide, 8 or 9 (new 2016) shot mag., extended magazine release, undercut trigger guard, Tritium night sights, G10 VZ Operator II grips, ambidextrous thumb safety, serrated rib, frame has lower Picatinny rail, recessed slide stop, matte stainless or black duty finish. New 2012.
.45 ACP cal., 5 in. barrel, SA, titanium coated spherical barrel bushing, 8 round mag., Performance Center markings, post front sight, adj. Bo-Mar rear sight, checkered two-piece laminated wood grips, bead blast stainless steel finish, ambidextrous frame mounted thumb safety, grip safety as part of the short beavertail, Master trigger lock, "Performance Center" marked foam-filled aluminum case starting in 1999, ser. nos. LEW0001-LEW1368, 43.5 oz. (1998) 42 oz. (1999 and later mfg.) Mfg. 1998-2000.