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Sig Sauer P320 Compact 9mm Centerfire Pistol with Contrast Sights

$650.00

Sig Sauer P320 Compact 9Mm Centerfire Pistol With Contrast Sights — A modular, striker-fired handgun known for its adaptability and reliable performance. Features a 3.9-inch barrel and 15-round capacity. Ships from Wichita, KS.

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Kansas Gunshop is a Wichita, KS-based retailer specializing in modern firearms and accessories. The Sig Sauer P320 Compact 9mm Centerfire Pistol with Contrast Sights is a modular, striker-fired handgun known for its adaptability and reliable performance. Its compact frame makes it a versatile choice for concealed carry or duty use. In stock at Kansas Gunshop for $650.0.

Reviewed by Derek, Owner & FFL Holder at Kansas Gunshop. Kansas-licensed FFL dealer since 2008, NRA Range Safety Officer.

Last updated: April 2026

What are the specifications of the Sig Sauer P320 Compact?

Product TypeCenterfire Pistol
Caliber9mm Luger
ActionStriker-fired
Capacity15+1 Rounds (standard)
SightsContrast Sights
Frame MaterialPolymer
Slide MaterialStainless Steel
Barrel Length3.9 inches
Overall Length7.2 inches
Overall Width1.3 inches
Height5.3 inches
Weight (empty)25.8 oz
FinishNitron (slide)
ManufacturingSig Sauer, USA
ConditionNew
SKU320C-9-BSS

What are the key features of the Sig Sauer P320 Compact?

The Sig Sauer P320 Compact is built around a modular fire control unit, which is the serialized part of the firearm. This design allows you to change the grip module and slide, effectively transforming the pistol into different sizes and calibers within the P320 family. This adaptability is a significant benefit for owners who want one platform to serve multiple roles, from concealed carry to home defense.

  • Modular Design: The serialized fire control unit allows for interchangeable grip modules and slides, offering customization in size and caliber. This means you can swap a compact frame for a full-size or subcompact without needing a new FFL transfer for the frame itself.
  • Striker-Fired Action: Provides a consistent, crisp trigger pull for improved accuracy and faster follow-up shots. There’s no external hammer to snag, making it suitable for concealed carry.
  • Contrast Sights: Equipped with standard three-dot contrast sights for clear target acquisition in various lighting conditions. These are a solid, reliable option for general use.
  • Reversible Magazine Release: Accommodates both right and left-handed shooters, adding to its ergonomic versatility.
  • Accessory Rail: An integrated M1913 Picatinny rail on the dust cover allows for easy attachment of lights, lasers, and other accessories. This is standard on most modern duty-style pistols.
  • Disassembly without Tools: The P320 can be field stripped without needing any tools or pulling the trigger, which is a safety feature I appreciate as an RSO.
  • Tactile and Audible Reset: The trigger provides a clear reset, which helps with consistent shooting and training.

Who is the Sig Sauer P320 Compact for?

The P320 Compact is a versatile handgun that appeals to a broad range of shooters.

Buy it if:

  • You’re looking for a reliable, modular handgun that can be adapted to different roles.
  • You need a pistol suitable for concealed carry but also capable of home defense or range use.
  • You appreciate a consistent striker-fired trigger pull.
  • You want the flexibility to change grip sizes or even slide lengths without purchasing a completely new firearm.
  • You value a pistol with a strong aftermarket for customization.
  • You’re a Kansas resident looking for a dependable 9mm pistol for personal protection or target shooting.

Skip it if:

  • You prefer a hammer-fired pistol with an external safety. See our Handguns category for models like the Beretta 92FS or CZ 75.
  • You require a pistol with a manual thumb safety (though some P320 variants do offer this, this specific model does not).
  • You’re on a very tight budget and need a more entry-level option. Consider models from brands like Taurus or SCCY for lower price points.
  • You strictly need a subcompact pistol for deep concealment; while compact, it might be too large for some deep concealment preferences.

What are the Pros and Cons of the Sig Sauer P320 Compact?

Pros:

  • Modularity: The biggest selling point. Easily change grip modules and slides to suit different needs or hand sizes.
  • Reliability: Sig Sauer’s reputation for robust and dependable firearms holds true with the P320. I’ve seen these run thousands of rounds without issue on the range.
  • Ergonomics: The grip angle and texture are comfortable for most shooters, and the controls are well-placed.
  • Consistent Trigger: The striker-fired system provides a predictable and clean trigger pull, aiding accuracy.
  • Safety Features: Internal drop safety, striker safety, and disconnect safety built into the fire control unit.
  • Aftermarket Support: A vast array of aftermarket parts and accessories are available for customization.

Cons:

  • No External Manual Safety: For those who prefer or are trained with a manual thumb safety, this model does not include one. Consider other P320 variants or different pistol brands if this is a must-have.
  • Cost of Modules: While modularity is a pro, acquiring additional grip modules or slide assemblies can add to the overall cost.
  • Standard Contrast Sights: While functional, they aren’t night sights. You might want to upgrade if low-light performance is critical for you. See our Sights & Optics for options.

How does the Sig Sauer P320 Compact compare to other pistols?

FeatureSig Sauer P320 CompactGlock 19 Gen5Smith & Wesson M&P Shield Plus
Material (Frame)PolymerPolymerPolymer
QualityHigh; durable polymer frame, stainless steel slide.High; time-tested polymer frame, Tenifer/nDLC coated slide.Good; reliable polymer frame, Armornite finish.
CompatibilityHighly modular (interchangeable grip modules, slides).Limited modularity (backstraps).Limited modularity (grip textures, optics cut on some models).
Caliber9mm Luger (modular for others)9mm Luger9mm Luger
Capacity (Standard)15+115+113+1 (extended), 10+1 (flush)
Barrel Length3.9 inches4.02 inches3.1 inches
Weight (empty)25.8 oz23.63 oz17.9 oz
Lifespan/DurabilityLong; designed for duty use and extensive firing.Very Long; known for extreme durability and longevity.Good; suitable for personal defense and regular range use.
Price (Approx.)$650.0$600-650$500-550

When you put the P320 Compact next to something like a Glock 19, you’re looking at two titans of the striker-fired world. The P320’s modularity really sets it apart – being able to swap out the grip module to fit your hand better or change the overall size of the pistol without buying a whole new gun is a serious advantage for some folks. The Glock 19 is a benchmark for reliability and has a massive aftermarket, but its modularity is limited to backstraps. The M&P Shield Plus is a smaller, more dedicated concealed carry option, trading some capacity and shootability for a more compact footprint. If you want one gun that can adapt to many roles, the P320 Compact is a strong contender.

Watch: Sig Sauer P320 X-Series

Frequently Asked Questions about the Sig Sauer P320 Compact

What is the capacity of the Sig Sauer P320 Compact?

The standard capacity for the Sig Sauer P320 Compact in 9mm is 15 rounds in the magazine, plus one in the chamber, for a total of 15+1 rounds. Higher capacity magazines are available for purchase separately.

Does the Sig Sauer P320 Compact have a manual safety?

This specific model of the Sig Sauer P320 Compact with contrast sights typically does not come with an external manual thumb safety. The P320 platform relies on internal safeties, including a striker safety and a disconnect safety. Some specific P320 variants are manufactured with manual safeties, but this is not one of them.

Can I change the grip module on my P320 Compact?

Yes, one of the primary features of the Sig Sauer P320 is its modular design. The serialized component is the fire control unit (FCU), which can be easily removed and placed into different grip modules. This allows you to change the size, color, and texture of your pistol’s grip without needing a new FFL transfer.

What kind of sights does the Sig Sauer P320 Compact come with?

This P320 Compact model is equipped with standard contrast sights. These are typically three-dot sights that provide a clear sight picture for general shooting conditions. If you’re looking for low-light capabilities, you might consider upgrading to tritium night sights or fiber optic sights.

Is the Sig Sauer P320 Compact suitable for concealed carry?

Yes, the Sig Sauer P320 Compact is a popular choice for concealed carry. Its 3.9-inch barrel and overall compact dimensions strike a good balance between concealability and shootability, making it manageable for daily carry while still offering a substantial grip and magazine capacity.

Where can I buy centerfire pistols online?

You can buy centerfire pistols online right here at Kansas Gunshop (kansas-gunshop.com). We offer a selection of handguns, including the Sig Sauer P320 Compact, and handle all FFL transfers in compliance with federal and state laws. Just select your receiving FFL at checkout.

What’s the best way to clean my Sig P320?

Cleaning your P320 is straightforward. Field strip the pistol by removing the slide and the fire control unit. Use a good quality gun cleaner and brush to clean the barrel, slide, and frame. Pay attention to the breech face and extractor. Lubricate with gun oil, especially on the slide rails and barrel. Consult your owner’s manual for specific instructions and recommended lubricants.

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About this review: As the owner and FFL holder at Kansas Gunshop, I’ve handled countless firearms and processed hundreds of transfers. My insights come from practical experience with these products and working directly with customers in the firearms community here in Kansas. My goal is to provide clear, compliance-aware information to help you make an informed decision.

Last updated: April 2026

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