SIG Sauer 1911 XO 45 ACP 5" Pistol with Romeo1Pro Red Dot Optic

The SIG Sauer 1911 XO 45 ACP delivers classic 1911 reliability with modern enhancements, including a factory-mounted Romeo1Pro red dot sight for rapid target acquisition. This full-size pistol combines traditional craftsmanship with contemporary tactical features.

What Makes This Different

Factory integration of the Romeo1Pro red dot eliminates the guesswork and expense of aftermarket optic mounting. The XO series features enhanced controls and improved ergonomics compared to standard 1911 platforms. SIG's manufacturing ensures consistent tolerances and reliable feeding with a wide range of 45 ACP ammunition loads.

Key Features

• Romeo1Pro red dot sight with 6 MOA dot for fast target acquisition
• Stainless steel slide with black Nitron finish for corrosion resistance
• Extended beavertail grip safety and ambidextrous thumb safety
• Low-profile night sights co-witness with red dot optic
• 8-round stainless steel magazine with slam pad base
• Picatinny rail section for tactical light or laser attachment
• Match-grade barrel with target crown for enhanced accuracy

Performance testing shows consistent 2.5-inch groups at 25 yards with quality ammunition. The Romeo1Pro provides unlimited eye relief and maintains zero through thousands of rounds. Weather sealing protects the optic from moisture and debris during extended use. The enhanced trigger delivers a clean break at approximately 4.5 pounds.

Technical Specs

• Caliber: 45 ACP
• Barrel Length: 5 inches
• Overall Length: 8.5 inches
• Height: 5.5 inches (with optic)
• Weight: 41.6 ounces (loaded)
• Magazine Capacity: 8+1 rounds
• Frame Material: Aluminum alloy
• Slide Material: Stainless steel
• Finish: Black Nitron
• Sights: Romeo1Pro red dot with night sight backup
• Safety: Thumb safety, grip safety, firing pin safety
• Country of Origin: USA

This factory-configured package eliminates the complexity of selecting and mounting compatible optics while maintaining the proven 1911 manual of arms. Professional shooters and serious enthusiasts recognize the value of factory integration and SIG's quality control standards.