P320 for Sale
Browse P320 listings from verified sellers across the U.S. on GunsAmerica.
Quick Look
The Sig Sauer P320 was introduced in 2014 as a modular striker-fired pistol designed for versatility and ease of customization. Its value lies in a serialized fire control unit, allowing caliber and frame changes. It remains popular among military, law enforcement, and civilian markets for its adaptability and reliability.
Why It's a Top Choice
- Modular design with interchangeable frames and slides
- Striker-fired with consistent trigger pull
- Wide aftermarket support for parts and accessories
- Used by multiple military and law enforcement agencies
- Available in several calibers
Key Variants
P320 M17
The military-adopted version with ambidextrous controls and enhanced durability for service use.
P320 X5 Legion
Competition-focused variant featuring an extended slide and upgraded trigger.
P320 Full Size
Standard full-size model suitable for duty and home defense.
P320 Compact
Compact model ideal for concealed carry with balanced size and capacity.
P320 Subcompact
Smallest variant designed for deep concealment and ease of carry.
Competitor Comparison Table
| Feature | P320 | Glock 19 | M&P Shield |
|---|---|---|---|
| MSRP | $600–$700 | $500–$600 | $400–$500 |
| Capacity / Size | 15+1 (9mm) Full Size | 15+1 (9mm) | 7+1 to 8+1 (9mm) |
| Weight | 29–32 oz (varies by model) | 23.65 oz | 20–22 oz |
| Optics-Ready | Yes (select models) | Yes (MOS models) | Limited models |
| Trigger Type | Striker-fired | Striker-fired | Striker-fired |
| Notable Pro | Modular with serialized fire control unit | Proven reliability worldwide | Slim, lightweight carry options |
| Notable Con | Heavier than some competitors | Less modular than P320 | Lower capacity mags |
Best Use Cases
- Military and law enforcement duty carry
- Concealed and open carry self-defense
- Competition pistol shooting
- Home defense
- Range training and practice
FAQs
Can I change calibers on the P320?
Yes. The P320's modular fire control unit allows caliber conversion with compatible slides, barrels, and magazines.
What trigger system does the P320 use?
It uses a striker-fired trigger with a consistent pull and internal safeties for secure handling.
How does the P320 compare to other striker-fired pistols?
Its modular design offers more flexibility than many striker-fired pistols, enabling customization and caliber changes.
