Introducing the P320®, a pistol that defies comparison with revolutionary features that stand alone. A smooth, consistent trigger pull. Safe, tool-free disassembly. A proper fit for any hand size—no backstrap required. Consider the mold broken.

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SIG SAUER P320 FULLSIZE 9MM PISTOL, BLACK CONTRAST SIGHTS – 320F-9-B

Introduction: A Legacy of Performance and Innovation

The SIG SAUER P320 Full-Size 9mm Pistol (320F-9-B) stands as a cornerstone in modern handgun design, combining battle-tested reliability, military-grade engineering, and adaptable modularity. As part of the prestigious P320 series, this full-sized powerhouse delivers uncompromising performance for law enforcement, military personnel, home defenders, competitive shooters, and concealed carry enthusiasts alike.

Manufactured by SIG SAUER, one of the most revered names in the firearm industry, the P320 Full Size is engineered to exacting standards of accuracy, safety, ergonomics, and durability. This model, finished in classic matte black and outfitted with contrast sights, embodies the confidence and trust professionals demand from their sidearms.

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Key Features at a Glance

• Model: SIG SAUER P320 Full Size

• Caliber: 9mm Luger

• Barrel Length: 4.7 inches

• Overall Length: 8.0 inches

• Height: 5.5 inches

• Width: 1.3 inches

• Weight: 29.5 oz (unloaded)

• Capacity: 17+1 rounds

• Frame Material: Polymer

• Slide Material: Stainless steel, Nitron-finished

• Sights: Standard Contrast Sights

• Trigger: Striker-fired

• Modular Fire Control Unit (FCU): Yes

• SKU: 320F-9-B

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Modular Fire Control Unit: True Customization

One of the P320’s most revolutionary features is its removable serialized Fire Control Unit (FCU). This design allows you to completely transform the firearm’s configuration by switching between grip modules, slides, barrels, and calibers.

You can easily upgrade the P320 to a compact, carry, or even subcompact version by purchasing compatible SIG conversion kits. This unparalleled modularity makes the 320F-9-B a cost-effective long-term investment. Whether you’re shooting at the range or defending your home, this is one pistol that evolves with your needs.

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Ergonomics and Handling

SIG SAUER engineered the P320 Full Size with ergonomics that rival custom builds. The pistol’s high undercut trigger guard, textured polymer grip, and reduced bore axis work in harmony to improve recoil control and fast target acquisition.

The P320’s intuitive controls—including ambidextrous slide releases and a reversible magazine catch—enhance left-handed usability without requiring special models. The grip module fits naturally in most hands, and the smooth edges make it comfortable for duty or everyday carry.

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Superior Trigger System

The P320 features a crisp, consistent striker-fired trigger that many shooters describe as one of the best in its class. Unlike many striker-fired pistols, the P320 trigger has a clean break with minimal take-up and a short, positive reset.

This enhances precision shooting, especially during rapid fire. Whether you’re clearing a course or defending your life, the trigger on the 320F-9-B won’t let you down.

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Military Proven, Civilian Ready

The SIG SAUER P320 platform famously won the U.S. Army’s Modular Handgun System (MHS) competition, beating out several high-profile competitors to become the M17/M18 service pistol for American forces. This victory speaks volumes about the P320’s reliability, durability, and versatility under battlefield conditions.

The P320 Full Size 9mm in black with contrast sights brings this same level of performance into the hands of civilian shooters, law enforcement agencies, and professional operators worldwide.

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Durability That Stands the Test of Time

Constructed with a stainless steel slide finished in Nitron—SIG’s proprietary black corrosion-resistant coating—the P320 is built to handle the harshest environments. The durable polymer grip module reduces weight without sacrificing strength, and internal metal reinforcements provide structural rigidity.

The slide-to-frame fit is tight, ensuring accuracy, yet the P320 is forgiving and easy to clean—ideal for high-round-count shooters and those relying on their pistol for defensive purposes.

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Contrast Sights for Fast Target Acquisition

Outfitted with standard black-on-white contrast sights, the 320F-9-B offers shooters a simple, no-nonsense aiming system suitable for both day and low-light shooting conditions. The clear sight picture aligns quickly with your target, aiding fast and instinctive aiming—particularly useful in high-pressure or defensive situations.

While SIG offers models with SIGLITE night sights and optics-ready configurations, the contrast sights offer maximum reliability and minimal maintenance—a favorite among those who prioritize simplicity.

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Magazine Capacity and Reload Efficiency

With a 17-round magazine capacity (plus one in the chamber), the P320 Full Size provides ample firepower in a slim, easily managed package. This model accepts SIG’s standard P320 full-size magazines, and extended capacity options (21 rounds and beyond) are available for competitive or tactical applications.

Reloads are efficient and smooth, thanks to the generously sized magwell and responsive magazine catch. Whether you’re on the range or in a critical scenario, the P320 is ready to reload and re-engage with minimal delay.

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Safety Without Compromise

Unlike many striker-fired pistols, the SIG P320 has no external safety lever, relying instead on a suite of internal safety features:

• Striker safety

• Disconnect safety

• Three-point takedown system

• No trigger pull required for disassembly

This safety system is designed to reduce the risk of negligent discharge while preserving the speed and simplicity modern shooters demand.

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Ideal For Multiple Roles

Whether you’re a civilian CCW holder, tactical operator, or competitive shooter, the SIG SAUER P320 Full Size 9mm meets and exceeds the demands of any role:

• Home Defense: High capacity, accuracy, and ease of use

• Duty Use: Proven reliability and combat-ready features

• Recreational & Target Shooting: Outstanding trigger and accuracy

• Training: Easy to learn, modular for all skill levels

• Competition: Upgradeable trigger and optics-ready slide options

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Upgrades and Accessories

The SIG P320 series is supported by an extensive aftermarket. Personalization options include:

• Red dot sight upgrades (via optic-ready slides)

• Threaded barrels for suppressors or comps

• Upgraded triggers (e.g., flat-faced or skeletonized)

• Weapon-mounted lights and lasers

• Custom grip modules (Wilson Combat, Icarus Precision, etc.)

• Holsters: OWB, IWB, tactical, and duty-grade options available

• Magwell extensions, grip weights, and more

The modular design means you’ll never outgrow the platform.

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Why Choose the SIG SAUER P320 Full Size 9mm?

1. Military-tested reliability – The same platform trusted by the U.S. Army.

2. Modular FCU design – Futureproof your investment.

3. Ergonomic comfort – Fits hands like a custom-made glove.

4. Excellent factory trigger – Clean break, fast reset.

5. High capacity – Outshoot many competitors.

6. Unmatched versatility – Suitable for all shooter levels.

7. Value-driven quality – Affordable yet premium build.

    P320 FULLSIZE

    P320 FULLSIZE

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Who Should Buy the 320F-9-B?

This firearm is perfect for:

• New shooters who want a high-quality first gun

• Law enforcement professionals looking for a reliable duty weapon

• Homeowners interested in dependable protection

• Competitive shooters seeking modularity

• Collectors who value military-grade firearms

• Firearm trainers looking for versatile teaching platforms

   P320 FULLSIZE

   P320 FULLSIZE

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Legal Considerations

Please check your local and state laws regarding:

• Magazine capacity limits

• Required permits or licenses

• Restrictions on striker-fired pistols

• Registration and transfer rules

Always purchase firearms legally through a licensed dealer (FFL).

 P320 FULLSIZE

 P320 FULLSIZE

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Final Thoughts: The Modern Shooter’s Choice

The SIG SAUER P320 Full Size 9mm Pistol (320F-9-B) is more than just a firearm—it’s a complete shooting platform. Whether for tactical use, defense, or recreational shooting, the P320 delivers where it counts: in your hands, on target, and under pressure.

 P320 FULLSIZE

 P320 FULLSIZE

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Buy the SIG SAUER P320 Full Size 9mm Now

Looking for a pistol that combines innovation, reliability, and affordability? The SIG P320 Full Size Black Contrast Sights 320F-9-B is your answer.p320 sig 9mm

 P320 FULLSIZE

 P320 FULLSIZE

Order now and experience the performance trusted by the world’s finest shooters.

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   P320 FULLSIZE

   P320 FULLSIZE