Sig Sauer P211 GTO RXSL | 9mm | 4.4" Compensated | Romeo3 PRO | 23rd Pistol

The SIG Sauer P211 GTO with ROMEO3PRO (MPN: 211F9GTOR3P) is a factory-configured compensated 9mm package that combines the P211 GTO platform with a SIG ROMEO3PRO optic. It uses the same 4.4-inch bull barrel and MACH3D compensator found on the GTO, paired with a steel frame, alloy grip module, and single-action control system.

The ROMEO3PRO is factory mounted to the P211’s SIG-LOC PRO interface, eliminating the need to source and fit an optic separately. The pistol also incorporates a skeletonized flat-blade trigger, ambidextrous manual safety, G10 grip panels, and removable magwell. Its P320-compatible magazine system provides high capacity, with one 23-round and two 21-round magazines listed for this package.

Key Features & Capabilities

• ROMEO3PRO Included: Factory optic package arrives with the red dot installed.
• MACH3D Compensator: Works with the 4.4-inch bull barrel to reduce muzzle rise.
• Single-Action P211 Platform: Steel frame, alloy grip module, and flat-blade trigger.
• P320 Magazine Compatibility: Uses SIG’s established double-stack magazine format.
• Three Magazines: Includes one 23-round and two 21-round steel magazines.

The 211F9GTOR3P is ideal for buyers who want the compensated P211 GTO with a factory-integrated competition-style optic rather than building the package separately. Browse handguns or shop 9mm ammunition.