Kansas Gunshop is a Wichita, KS-based retailer specializing in firearms and FFL transfers. The Sig Sauer P320 9mm Police Trade-In Pistol (Good) is a reliable, duty-proven 9mm handgun. These P320s offer a cost-effective entry into the Sig Sauer platform. Available now for $499.00.
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 9mm Police Trade-In?
| Product Type | Semi-Automatic Pistol |
|---|---|
| Material | Polymer Frame, Stainless Steel Slide |
| Manufacturing | Sig Sauer |
| Finish | Nitron (Slide), Polymer (Frame) |
| Hardness/Quality | Duty-grade, built to law enforcement specifications |
| Compatibility | Sig Sauer P320 accessories (magazines, holsters, grip modules) |
| Installation/Usage | Standard firearm operation; requires FFL transfer |
| Weight | Approximately 26 oz (unloaded, depending on configuration) |
| Dimensions | Variable depending on specific P320 variant (e.g., Compact, Full-size) |
| Country of Origin | USA |
| Condition | Good (Police Trade-In) – Expect holster wear, minor cosmetic blemishes |
| SKU | P320-9MM-POLICE-TRADE-IN-GOOD |
What are the key features of this P320?
These Sig Sauer P320 9mm police trade-in pistols come from law enforcement agencies, meaning they’ve seen active duty but have also been regularly maintained. The P320 platform is known for its modularity, allowing users to swap out grip modules and slides. This particular offering is in “Good” condition, indicating it’s fully functional with expected cosmetic wear from holster use and handling. You’re getting a reliable 9mm handgun that has proven itself in demanding environments.
The striker-fired action provides a consistent trigger pull, and the standard Siglite sights (if present, as these can vary) offer good visibility. Each pistol will include at least one magazine. The modular fire control unit (FCU) is the serialized component, meaning the frame can be easily swapped without requiring a new FFL transfer.
Who is this Sig Sauer P320 for?
This Sig Sauer P320 9mm police trade-in is a solid choice for several types of buyers.
- New gun owners: The P320 is a straightforward, reliable pistol to learn on, and the price point makes it accessible.
- Experienced shooters: If you’re looking for a dependable backup gun, a project gun for customization, or an affordable entry into the P320 ecosystem, this fits the bill.
- Concealed carry permit holders: Depending on the specific variant (compact or full-size), a P320 can be a viable option for concealed carry, offering good capacity and ergonomics.
- Budget-conscious buyers: Getting a duty-grade firearm from a reputable manufacturer like Sig Sauer at this price point is a real value.
- Collectors: Some enjoy the history and character of police trade-in firearms.
What are the pros and cons of purchasing a police trade-in P320?
Like any used firearm, there are trade-offs to consider.
Pros:
- ✅ Proven Reliability: These firearms were trusted by law enforcement, indicating a high level of function and durability.
- ✅ Cost-Effective: You get a Sig Sauer P320 at a significantly lower price than a new one.
- ✅ Duty-Grade Construction: Built for tough use, these pistols are robust.
- ✅ Modular Platform: The P320’s modularity means you can swap grip modules, slides, and barrels to customize it to your preferences.
- ✅ Widely Available Aftermarket: Parts and accessories for the P320 are plentiful, making customization and maintenance easy.
Cons:
- ❌ Cosmetic Wear: Expect holster wear, minor scratches, and dings. These are not pristine firearms. If you want something brand new, see our new firearms.
- ❌ Unknown Round Count: While maintained, the exact round count is generally unknown.
- ❌ Varying Configurations: Specific features like sight type, magazine capacity (where legal), and grip module size can vary from one trade-in to another.
How does the Sig Sauer P320 compare to other common duty pistols?
When considering a duty-proven pistol, it’s helpful to see where the P320 stands against its peers.
| Feature | Sig Sauer P320 (Police Trade-In) | Glock 17/19 (Police Trade-In) | Smith & Wesson M&P (Police Trade-In) |
|---|---|---|---|
| Material | Polymer Frame, Stainless Steel Slide | Polymer Frame, Steel Slide | Polymer Frame, Stainless Steel Chassis/Slide |
| Quality | Duty-grade, robust construction | Duty-grade, highly durable | Duty-grade, reliable |
| Compatibility | Modular FCU, wide aftermarket | Extensive aftermarket, simple design | Good aftermarket support |
| Shipping | From Wichita, KS (FFL required) | From various FFL dealers (FFL required) | From various FFL dealers (FFL required) |
| Lifespan/Durability | Long service life with proper maintenance | Known for extreme durability | Good long-term durability |
| Price (Approx.) | $499 (Good condition) | ~$350-500 (Good condition) | ~$300-450 (Good condition) |
Frequently Asked Questions about the Sig Sauer P320 Police Trade-In
What does “Good” condition mean for a police trade-in?
“Good” condition for a police trade-in firearm typically means the pistol is fully functional and safe to operate, but will show signs of regular use. This includes holster wear, minor scratches, dings on the frame or slide, and some finish loss. The bore should be in good condition, and the mechanical components should function as intended. These are not new firearms, but they are reliable.
What accessories come with the Sig Sauer P320 Police Trade-In?
Generally, police trade-in pistols like the Sig Sauer P320 will come with at least one magazine. The original box, manual, or additional magazines are usually not included, but it varies. Any included accessories will be specified in the product listing.
Is the Sig Sauer P320 9mm Police Trade-In safe?
Yes, all firearms sold by Kansas Gunshop are inspected for functionality and safety. While these are used firearms, they are vetted to ensure they are in safe operating condition. It is always recommended to perform your own inspection and cleaning upon receipt from your FFL.
Can I customize a police trade-in Sig Sauer P320?
Absolutely. The Sig Sauer P320 is renowned for its modularity. You can swap out the grip module, slide, and even the barrel to change the pistol’s size, ergonomics, and caliber (with appropriate parts). Many aftermarket accessories, such as sights, triggers, and lights, are also available.
Where can I buy handguns online?
You can buy handguns online, including this Sig Sauer P320, here at Kansas Gunshop (kansas-gunshop.com). All online firearm purchases require shipment to a Federal Firearm License (FFL) holder in your state for transfer.
What is the process for purchasing a firearm online?
When you purchase a firearm online from Kansas Gunshop, you will need to provide the shipping address of your chosen local FFL dealer. We will then ship the firearm to them. Upon arrival, you will visit your FFL, complete the necessary paperwork (e.g., ATF Form 4473), and undergo a background check. Once approved, you can take possession of your firearm.
Do these P320s have the voluntary upgrade?
Many police trade-in P320s have already undergone Sig Sauer’s voluntary upgrade program to address the drop-safety issue. However, we cannot guarantee that every single unit has received it. If this is a concern, you can contact Sig Sauer with the pistol’s serial number to verify its status or send it in for the upgrade.
✅ Same-day shipping from Wichita, KS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Browse more: Handguns | Full Shop
Reviews
There are no reviews yet.