P320 for Sale

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.