SIG SAUER P320 9MM FULLSIZE PISTOL 320F-9-BSS

Introducing the P320, a polymer-framed service pistol designed from the ground up with the input of law enforcement officers. The result is the most operator-safety focused striker duty pistol on the market today.

Taking into account the concerns of military and police training officers, the P320 provides an enhanced level of safety not found on most modern service pistols. Unlike its competitors, the P320 does not require the operator to pull the trigger nor use a special tool to take-down the firearm for cleaning or routine maintenance.

Featuring a modular grip frame and removable fire control assembly pioneered by SIG SAUER, the P320 is customizable to any hand size or duty requirement. The P320 can quickly be converted from a Full-size to a Carry pistol. Slide and barrel conversions allow the P320 to change between calibers and barrel lengths as well.

With a partially pretensioned striker, the P320 has a short, crisp trigger pull with a quick, pronounced reset right out-of-the-box. The P320 comes in two trigger variants: a standard trigger and a tabbed safety trigger for specific law enforcement clients. Featuring the SIG SAUER internal safety system, the P320 has no external safety or decocking lever to snag or hang up on the draw. A frame-mounted thumb safety version will be available for law enforcement needs. SIGLITE® night sights come standard, and the reversible magazine release makes the P320 completely ambidextrous.

Whatever the requirement, patrol duty, competition, time at the shooting range, or concealed carry, the P320 brings SIG SAUER legendary reliability, durability, and quality to the polymer-framed, striker-fired duty pistol.

SIG SAUER P320 9MM FULLSIZE PISTOL – 320F-9-BSS: A Tactical Powerhouse for Duty, Defense & Precision Shooting

When performance, reliability, and innovation intersect, the result is the SIG SAUER P320 9MM FULLSIZE PISTOL – 320F-9-BSS. A testament to precision engineering, this full-size modular handgun is a premier choice for law enforcement, military personnel, competitive shooters, and civilian gun enthusiasts seeking high-performance defense and range weaponry. Whether you’re a professional marksman or a first-time buyer searching for a dependable pistol, the P320 offers superior firepower, customizable ergonomics, and a robust reputation trusted worldwide.

. Overview of the SIG SAUER P320 Series

The SIG SAUER P320 family has quickly become one of the most respected handgun platforms in modern firearms history. From the U.S. Army’s official sidearm (the M17/M18) to competitive shooter favorites and concealed carry versions, the P320 line is celebrated for its striker-fired, modular design that enables unparalleled adaptability. The full-size 320F-9-BSS model stands tall in this lineage as the flagship full-duty configuration optimized for accuracy, control, and comfort.

The P320 series was designed with the shooter in mind—eliminating external safeties while maximizing safety through internal mechanisms and striker control systems. As a striker-fired, polymer-framed, and modular fire control unit (FCU) handgun, it is one of the most innovative pistols on the market today.

. Key Features of the SIG SAUER P320 Full Size 9mm (320F-9-BSS)

Let’s dive deep into what makes this particular P320 variant a standout:

1. Caliber & Capacity

• Caliber: 9mm Luger

• Standard Magazine Capacity: 17 rounds (with compatibility for 21-round extended mags)

The 9mm chambering offers a perfect balance between stopping power and manageable recoil. Its widespread availability and affordability make it a practical choice for training, personal defense, and law enforcement.

2. Full-Size Frame

• Barrel Length: 4.7 inches

• Overall Length: 8 inches

• Width: 1.3 inches

• Height: 5.5 inches

• Weight (with magazine): 29.5 oz

The full-size format provides increased sight radius and improved handling, allowing for better accuracy, less felt recoil, and superior balance for larger-handed shooters.

3. SIGLITE Night Sights

This model comes equipped with SIGLITE night sights, providing enhanced low-light visibility. The three-dot tritium setup ensures precise target acquisition even in complete darkness—ideal for duty or self-defense scenarios.

4. Striker-Fired Reliability

With a crisp, consistent striker-fired trigger system, the 320F-9-BSS excels in both training and tactical environments. Expect a short, tactile reset and smooth pull—engineered for fast follow-up shots and confident handling.

5. Modular Fire Control Unit (FCU)

The serialized fire control unit is the “soul” of the P320 and can be easily removed and installed in various grip modules, slides, and calibers. This means your 320F-9-BSS can evolve with you—convert it into a compact carry pistol, a competition-ready rig, or even a suppressor-ready tactical tool.

6. Safety Features

Despite having no external manual safety, the pistol integrates:

• A striker safety

• Disconnect safety

• Tactile and visual loaded chamber indicator

• Internal drop safety (passes all drop tests)

These features make it a secure and fail-safe system without compromising on readiness.

. Performance in the Field

The SIG SAUER P320 9MM FULLSIZE PISTOL (320F-9-BSS) thrives in various scenarios, including:

1. Law Enforcement & Military Applications

Its adoption by multiple U.S. and international agencies speaks volumes. With reliability under stress, excellent trigger response, and rugged durability, the P320 320F-9-BSS is tailored for mission-critical environments.

2. Competitive Shooting

With excellent balance, superior trigger mechanics, and minimal recoil, the P320 is a favorite in USPSA, IDPA, and other shooting competitions. The full-size grip enhances recoil control, enabling faster target re-engagement.

3. Home & Personal Defense

The 17+1 capacity, night sights, and ease of use make the 320F-9-BSS a top-tier defensive pistol. Its intuitive design is ideal for novice shooters, while its advanced features provide seasoned users the edge they demand in high-pressure situations.

. Build Quality & Durability

1. Stainless Steel Slide and Barrel

The slide and barrel are crafted from durable stainless steel with a Nitron™ finish for corrosion resistance and an aggressive blacked-out aesthetic.

2. Polymer Grip Module

Strong yet lightweight, the polymer grip module offers excellent durability and customizability. SIG offers multiple grip sizes (Small, Medium, Large) to match hand sizes and shooting preferences.

3. Accessory Rail

The integrated Picatinny rail allows users to mount tactical lights, lasers, or other accessories. Whether you’re kitting your pistol for duty use or optimizing it for home defense, the rail offers excellent flexibility.

. Ergonomics and Handling

1. Interchangeable Grip Modules

Adapt your gun to your hand—not the other way around. The P320’s modularity includes grip size options and contour adjustments for perfect fit and recoil management.

2. Textured Grip

A non-slip texture on the grip ensures secure hold in all conditions—wet, gloved, or sweaty hands included.

3. Trigger Guard & Undercut

An ergonomically shaped trigger guard and undercut improve the support hand grip and reduce muzzle rise, enabling faster follow-up shots and improved target control.

. Customization & Aftermarket Support

The P320 enjoys a thriving aftermarket ecosystem:

• Custom slides (optics-ready, ported, etc.)

• Upgraded barrels (threaded for suppressors)

• Drop-in triggers and flat-faced options

• Optic plates for red dots (RMR, DPP, Romeo1Pro, etc.)

• Extended magazines

• Cerakote finishes

This support ensures the SIG SAUER P320 9MM FULLSIZE PISTOL can evolve with you over time—one of the greatest strengths of the P320 platform.