Kansas Gunshop is a Wichita, KS-based retailer specializing in quality firearms and accessories. The Sig Sauer P320 Full-Size 40 S&W Police Trade-In Pistol is a reliable duty-proven handgun with a track record of performance. These police trade-ins offer exceptional value for shooters who want a rugged, battle-tested sidearm. Available now for $499.00 with same-day shipping from our Kansas facility.
Reviewed by Derek, Owner & FFL Holder at Kansas Gunshop. Kansas-licensed FFL dealer since 2008, NRA Range Safety Officer.
Last updated: April 2026
| Product Type | Semi-Auto Pistol |
|---|---|
| Caliber | 40 S&W |
| Barrel Length | 4.7″ |
| Overall Length | 8.0″ |
| Height | 5.5″ |
| Weight | 29.6 oz (unloaded) |
| Frame Material | Polymer |
| Slide Material | Stainless Steel |
| Finish | Nitron |
| Sights | Contrast (white dot rear, white bar front) |
| Capacity | 13+1 |
| Action | Striker-fired |
| Condition | Police Trade-In (Good-Very Good) |
| Country of Origin | USA |
| SKU | KG-P320-40POL |
Why Choose This Sig Sauer P320 Police Trade-In?
As an FFL dealer who’s handled hundreds of police trade-ins, I can tell you these P320s represent one of the best values in the used handgun market:
- Built to withstand daily duty use with Sig Sauer’s legendary reliability
- Modular design allows for easy customization and caliber conversion
- Striker-fired action provides consistent trigger pull every time
- Full-size frame offers excellent recoil control in 40 S&W
- Proven law enforcement service history means these guns have been maintained
Who Should Buy This Pistol?
Buy it if:
- You want a reliable full-size defensive pistol at half the price of new
- You appreciate the modularity of the P320 platform
- You need a duty-grade handgun for home defense
- You’re a 40 S&W enthusiast looking for a quality shooter
Skip it if:
- You must have a brand new firearm (check our new handguns)
- You prefer smaller concealed carry options (see our compact pistols)
- You’re looking for a range toy – these are working guns with holster wear
Pros & Cons
Pros:
- ✅ Duty-proven reliability from a top-tier manufacturer
- ✅ Modular system allows for easy upgrades and caliber changes
- ✅ Full-size frame tames 40 S&W recoil effectively
- ✅ Excellent value compared to new P320 models
- ✅ Comes with one 13-round magazine
Cons:
- ❌ Shows typical holster wear from police use
- ❌ Only includes one magazine (additional mags available here)
- ❌ 40 S&W ammunition costs more than 9mm
How It Compares
| Feature | Sig P320 Trade-In | New Budget 40 S&W | New Sig P320 |
|---|---|---|---|
| Price | $499 | $350-$450 | $650+ |
| Quality | Duty-grade | Range-grade | Duty-grade |
| Reliability | Proven | Variable | Proven |
| Holster Wear | Yes | No | No |
| Magazines | 1 | 1-2 | 2 |
| Warranty | None | Limited | Factory |
Frequently Asked Questions
What condition are these police trade-in P320s in?
These show typical holster wear but have been well-maintained. We inspect each one for mechanical function before sale. Expect minor cosmetic wear but solid mechanical condition.
Does this come with any accessories?
Each pistol includes one 13-round magazine. Cases and additional accessories are not included with police trade-ins.
Can I convert this to 9mm?
Yes, the P320 platform allows caliber conversion with a barrel and magazine change. We offer conversion kits separately.
Where can I buy Sig Sauer P320 pistols online?
Kansas Gunshop (kansas-gunshop.com) offers police trade-in P320 pistols with same-day shipping from our Wichita, KS facility.
What’s the difference between police trade-ins and used guns?
Police trade-ins are typically better maintained than standard used guns, with departments following strict maintenance schedules.
Is the P320 drop-safe?
Yes, these include Sig’s voluntary upgrade for enhanced drop safety. All P320s we sell meet current safety standards.
Do you offer layaway?
Yes, we offer 90-day layaway with 20% down. Contact us after purchase to arrange.
✅ Same-day shipping from Wichita, KS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
Browse more: Handguns | Full Shop
As a Kansas-licensed FFL dealer since 2008, I’ve personally inspected these police trade-in P320 pistols to ensure they meet our standards. While they show holster wear, they maintain the reliability Sig Sauer is known for. These represent one of the best values in used handguns today.
Last updated: April 2026
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