SIG SAUER P320 Full .40 S&W Pistol — Description

The SIG SAUER P320 Full Size .40 S&W is a modular striker-fired semi-automatic pistol designed for duty, range, and defensive applications. Built around SIG Sauer’s innovative P320 modular fire control unit, the pistol allows users to customize grip size and configuration while maintaining the same serialized chassis.

Chambered in .40 S&W, the full-size P320 delivers a balance of power, capacity, and controllability. Its full-length slide and 4.7-inch barrel provide an extended sight radius for improved accuracy, while the ergonomic polymer grip module offers comfortable handling during extended shooting sessions.

The P320 Full features a stainless steel slide with a durable Nitron finish, striker-fired operation, ambidextrous controls, interchangeable grip modules, and an integrated accessory rail. Its modular design allows users to configure the pistol for different hand sizes, applications, and preferences.

SIG SAUER P320 Full Size .40 S&W — Specifications

Manufacturer: SIG SAUER
Model: P320 Full Size
Caliber: .40 S&W
Action: Striker-fired, semi-automatic
Operating System: Short recoil, locked breech
Frame Material: Polymer grip module with stainless steel serialized fire control unit
Slide Material: Stainless steel
Slide Finish: Nitron black finish
Barrel Length: 4.71 inches
Overall Length: 8.05 inches
Overall Height: 5.51 inches
Overall Width: 1.38 inches
Weight (with magazine): Approx. 29.4 oz
Magazine Capacity: 14 rounds
Magazine Type: Double-stack detachable magazine
Trigger System: Striker-fired trigger
Sight Radius: Approx. 6.64 inches
Sights: Contrast sights or SIGLITE night sights (configuration dependent)
Safety Features: Internal safety mechanisms; optional manual safety models available
Accessory Rail: Integrated Picatinny-style rail
Finish: Black Nitron slide with polymer frame

Key Features

• Full-size .40 S&W platform for duty and range performance
• 14-round magazine capacity
• Modular P320 fire control unit for easy customization
• Interchangeable grip modules available in multiple sizes
• Stainless steel slide with Nitron finish for durability and corrosion resistance
• Full-length barrel and slide for enhanced accuracy potential
• Ergonomic polymer frame for comfortable handling
• Integrated accessory rail for compatible lights and accessories
• Striker-fired design with consistent trigger characteristics