Sig pistols are engineered to perform anywhere, at any time, and under any circumstance.They boast unique, advanced features that stand out among the rest.Sig's 1911 pistols feature exceptional ergonomics, crisp sao trigger, all-metal frame, rugged construction and protective coating.They have been engineered for today's shooter with sig's reliability and modern refinements.The 1911 full size stx model is machined to exacting tolerances and hand-fitted to insure reliability and performance.The frame features 25-line per inch checkering on the front strap, while the mainspring housing has 20-line per inch checkering.Its stainless steel slide is further accented by polished cocking serrations and a flat top which enhances the two-tone aspect of this pistol.The slide is topped off with adjustable combat night sights while the frame is outfitted with a magwell for fast smooth reloads.Additional features includes match grade barrel, hammer/sear set and trigger, and wood grip.This model has a 5" barrel, siglite night sights, and comes with two 8-round magazines.Frame Finish: Stainless SteelType: PistolAction: SAOCaliber: 45 ACPBarrel Length: 5"Capacity: 8+1Safety: GripGrips: Burled Maple WoodSight Configuration: Siglite NightWeight: 41.6 ozFrame Material: Stainless SteelBarrel Type: Match GradeSlide Description: Serrated Black Nitron Stainless SteelSight Style: NightBarrel Length Range: 5.00" to 5.99"Weight Range: 32.00 oz to 47.99 oz