SIG Sauer P211-GTO 9mm 4.4" Bull Bbl MACH3D Comp Optics Ready Black Nitron

The SIG Sauer P211-GTO is a full-size, hammer-fired semi-automatic pistol chambered in 9mm Luger, combining the traditional operating characteristics of a double-stack 1911-style handgun with SIG Sauer's modern P211 design. This example, factory model 211F-9-GTO, features a 4.4-inch bull barrel paired with SIG's distinctive MACH3D compensator, a black Nitron-finished stainless steel slide and frame, and an aluminum alloy grip module fitted with textured G10 grip panels. Its full-length dust cover, angular slide contours, and extended magazine well give the pistol a recognizable appearance within SIG Sauer's hammer-fired handgun lineup.

The P211 platform draws from the familiar 1911 operating system while incorporating several contemporary design features. Its single-action-only, short-recoil-operated mechanism uses an exposed hammer and a straight-pull trigger with a flat, skeletonized trigger shoe. The pistol also incorporates an extended beavertail, grip safety, ambidextrous thumb safety, and firing pin safety. Rather than using a conventional 1911-pattern magazine, the P211 is designed around SIG Sauer's established P320-compatible double-stack magazine system.

One of the defining characteristics of the P211-GTO is its MACH3D compensator, which is precision-mounted ahead of the 4.4-inch bull barrel. Manufactured using an additive metal-production process, the compensator incorporates internal gas-flow geometry designed to redirect propellant gases and reduce muzzle rise. The stainless steel slide features pronounced front and rear serrations and an enlarged ejection port, while its black Nitron finish provides a uniform appearance across the upper assembly.

The pistol is equipped with a SIG-LOC PRO optics-ready slide, allowing installation of compatible red-dot optics. Its standard sight arrangement consists of a green fiber-optic front sight and black rear sight. Beneath the slide, the full-length frame incorporates a 1913 Picatinny accessory rail, while the grip features textured G10 panels, frontstrap checkering, and a removable steel magazine well. The contrast between the dark metal finish, silver-tone skeletonized trigger, and steel magazine well provides several distinctive visual details.

This P211-GTO is new in box. Factory specifications for model 211F-9-GTO include a standard magazine package consisting of two 21-round magazines and one 23-round magazine. 

Specifications:

• Manufacturer: SIG Sauer
• Model: P211-GTO
• Manufacturer SKU: 211F-9-GTO
• UPC: 798681728077
• Caliber: 9mm Luger (9x19mm)
• Action: Single-Action-Only Semi-Automatic
• Operating System: Short-Recoil, Locked Breech
• Barrel Length: 4.4 Inches
• Barrel Profile: Bull Barrel
• Compensator: SIG Sauer MACH3D
• Frame Size: Full Size
• Frame: Stainless Steel
• Grip Module: Aluminum Alloy
• Slide: Stainless Steel
• Finish: Black Nitron
• Grip Panels: Textured Black G10
• Trigger: Flat, Skeletonized Straight-Pull Trigger
• Hammer: Exposed
• Safety: Ambidextrous Manual Thumb Safety, Grip Safety, and Firing Pin Safety
• Slide Catch: Ambidextrous
• Sights: Fiber-Optic Front, Black Fixed Rear
• Optics Ready: Yes
• Optics Interface: SIG-LOC PRO
• Slide Serrations: Front and Rear
• Magazine Compatibility: SIG P320-Pattern Double-Stack Magazines
• Standard Factory Magazines: 2 x 21-Round and 1 x 23-Round
• Magazine Well: Removable Steel Magwell
• Accessory Rail: Full-Length 1913 Picatinny
• Overall Length: 8.5 Inches
• Overall Width: Approximately 1.6 Inches Including Magazine Funnel
• Factory Weight: Approximately 45.4 oz. with Magazine
• Condition: New in Box