SPECS: Aluminum body, anodized. Steel cross carriage bolt and thumbscrew, black oxide finish. Beretta/Glock - 4¾” (12.1cm) wide, 3” (7.6cm) high, ¾” (19mm) thick. 1911 Auto - 4¾" (12cm) wide, 3" (7.6cm) high, ¾" (19mm) thick. SIG - 4¾” (12.1cm) wide, 5” (12.7cm) high, 1” (2.5cm) thick. Smith & Wesson M&P and Springfield XD - 4¾” (12.1cm) wide, 3-5⁄8" (9.2cm) high, 1-5⁄8" (4.1cm) thick; fits front and rear sights.