The Revolution Series 1911 pistols from Sig Sauer feature all stainless steel frame and slide machined to exacting tolerances and hand fitted toinsure reliability and performance. Like all Sig Sauer products theRevolution contains only premium internal parts including a match gradebarrel, hammer/sear set and trigger. The slide sports Novak night sights.The frame features 25-line per inch checkering on the front strap and20-line per inch on the mainspring housing and is complimented by a set ofcheckered grips. Both the frame and slide on the Revolution are de-hornedmaking it ideal for perfect full size concealed carry. For safety the GSRfeatures a beavertail grip safety with speed bump, extended thumb safety,firing pin safety and hammer intercept notch. Also available in compactsize with a 4 1/4" barrel.