Sig Sauer P320 Full-Size 9mm Nitron Optic Ready

The Sig Sauer P320 Full-Size is a modular, striker-fired pistol chambered in 9mm Luger designed for shootability and versatility. It features a medium full-size polymer grip module, a stainless steel slide/frame assembly with a Nitron finish, and SIGLite front and rear night sights. The slide is optic-ready with a PRO/ROMEO1 footprint and the frame includes a full-length accessory rail for lights and lasers.

Key Specifications

• Chambered in 9mm Luger for common, range-friendly ammunition.
• Action is striker-fired, semi-automatic for consistent trigger operation.
• Slide and frame material is stainless steel with a Nitron finish.
• Grip module is a polymer medium full-size configuration for standard ergonomics.
• Equipped with a PRO/ROMEO1 optic footprint for popular micro red-dot sights.
• Sights are SIGLite night sights for improved low-light acquisition.
• Includes a full-length accessory rail for lights or other attachments.
• Finish is Nitron for corrosion resistance and a low-reflective profile.
• Overall size and configuration classify it as a full-size service pistol.
• Listed weight with magazine is 28.3 oz as provided in product data.

The P320 Full-Size combines a modular platform with practical features—optic readiness, night sights, and a full-length rail—to serve a wide range of uses from precision target work at the range to responsible home defense. Its straightforward controls and adaptable grip module make it a solid choice for shooters who value a capable, configurable platform without unnecessary complexity.