GunsAmerica

Quick Look

The Sig P320 Compact was introduced in 2014 as part of Sig Sauer's modular striker-fired lineup. Designed for adaptability and ease of use, it features a serialized fire control unit that allows caliber and frame swaps. It remains a top-selling compact handgun favored for concealed carry and law enforcement use.

Why It's a Top Choice

Modular fire control unit enables full customization
Striker-fired design with smooth, consistent trigger pull
Excellent factory sights and optics-ready options
High-capacity magazines in a compact form
Widely adopted by law enforcement and military

Key Variants

Sig P320 Compact RXP

Factory-equipped with a ROMEO1PRO red dot, great for defensive and duty use.

Sig P320 Compact Nitron

Black Nitron-finished classic version with night sights and minimalist profile.

Sig P320 M18

The US military's compact duty pistol: manual safety, optics-ready slide.

Sig P320 XCompact

Ergonomic X-Series grip, flat trigger, accessory rail, competitive edge.

Sig P320 AXG Compact

Alloy-framed premium variant for those wanting metal-frame feel in a striker pistol.

Competitor Comparison Table

Feature	Sig P320 Compact	Glock 19	Smith & Wesson M&P9 Compact
MSRP	$600-$750	$500-$600	$500-$700
Capacity/Size	15+1, compact	15+1, compact	15+1, compact
Weight	25.0 oz	23.7 oz	25.9 oz
Optics-Ready	Yes (some models)	Only MOS models	Yes
Trigger Type	Striker, smooth pull	Striker, safe-action	Striker, hinged trigger
Notable Pro	Fully modular system	Extensive aftermarket	Great factory ergos
Notable Con	Slightly bulkier grip	Less trigger feel	Heavier than others

Best Use Cases

Everyday concealed carry
Home and personal defense
Law enforcement duty weapon
Competition with X-Series models
Modular platform for training use

FAQs

What is the Sig P320 Compact's magazine capacity?

It holds 15 rounds of 9mm in a flush-fit magazine, with extended mags available.

Can I convert the Sig P320 Compact to other calibers?

Yes, the modular fire control unit allows caliber changes with proper slide and barrel kits.

How does the Sig P320 Compact compare to the Glock 19?

It offers more modularity and trigger refinement, while Glock 19 has broader aftermarket support.

SIG P320 COMPACT for Sale