Sig Sauer P320 MAX Custom 9mm 5in w/Romeo3 Max 21rd

The Sig Sauer P320 MAX Custom is an optics-ready variant of the P320 platform configured in 9mm with a 5-inch barrel and a factory-installed Romeo3 Max optic. It ships with a Nitron-finished grey slide and four 21-round magazines for extended capacity. The pistol is built to the MAX specification with custom slide work suitable for competitive and professional shooting applications.

Key Specifications

• The caliber is 9mm.
• The barrel measures 5 inches.
• Equipped with a factory-installed Romeo3 Max optic.
• The slide finish is Nitron (grey).
• Includes four 21-round magazines.
• The model designation is P320 MAX.
• The action is semi-automatic.
• Features custom slide work by Custom Works.
• Includes a TXG FS Grip Mod 4 configuration as described by the manufacturer text.

With its optics-ready slide, factory-mounted Romeo3 Max, and extended-capacity magazines, the P320 MAX Custom provides a practical balance of accuracy and competition-oriented features in a service-caliber platform. The combination of a 5-inch barrel, robust slide finish, and purpose-built ergonomics delivers a reliable setup for range training, matches, or professional use where legal. This configuration reduces the need for aftermarket setup and presents a ready foundation for performance-focused owners.