SIG SAUER P320 for Sale
Browse SIG Sauer P320 listings from verified sellers across the U.S. on GunsAmerica.
Quick Look
The Sig Sauer P320 debuted in 2014 as a modular striker-fired pistol designed for adaptability and ease of use. Its design philosophy centers on modularity, allowing users to customize grip size, caliber, and slide length. Today, the P320 enjoys widespread adoption, including use by U.S. military and law enforcement agencies worldwide.
Why It's a Top Choice
- Modular design fits multiple hand sizes and calibers
- Consistent striker-fired trigger for reliability
- Wide aftermarket support and accessories
- Adopted by USSOCOM and several police forces
- Easy disassembly and maintenance
Key Variants
P320 M17
The U.S. military’s full-size service pistol variant offering durability and ambidextrous controls.
P320 X-Five
Competition-focused model with enhanced ergonomics and improved trigger for precision shooting.
P320 C
Compact variant ideal for concealed carry and law enforcement use.
Competitor Comparison Table
| Feature | Sig Sauer P320 | Glock 19 | Smith & Wesson M&P 9 |
|---|---|---|---|
| MSRP | $600 - $850 | $550 - $700 | $500 - $750 |
| Capacity/Size | 15+1 (9mm), modular sizes | 15+1 (9mm), compact full-size | 17+1 (9mm), full-size |
| Weight | 29 oz (full size) | 23.65 oz | 24 oz |
| Optics-Ready | Yes | Yes (select models) | Yes (optional) |
| Trigger Type | Striker-fired | Striker-fired | Striker-fired |
| Notable Pro | Highly modular and customizable | Proven reliability and simplicity | Ergonomic with excellent grip |
| Notable Con | Heavier than some competitors | Limited modularity | Slightly larger grip circumference |
Best Use Cases
- Self-defense and concealed carry
- Military and law enforcement duty
- Competition shooting and training
- Range practice and marksmanship
- Collecting modern modular pistols
FAQs
Can I change calibers on the Sig Sauer P320?
Yes, the P320’s modular design allows caliber changes by swapping barrels, slides, and magazines with compatible kits.
What is the trigger pull weight of the P320?
The P320 striker-fired trigger averages around 6.5 to 7.5 pounds, varying slightly by model and aftermarket tuning.
How does the P320’s modular frame benefit users?
It allows quick configuration changes to grip size, caliber, and slide length, adapting to different needs and users.
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Sig Sauer P320 (320C-9-BSSP)
$549.99
