Sig Sauer P365X 9mm 3.1" Barrel, 12-Round, Black

The Sig Sauer P365X 9mm is a micro-compact striker-fired pistol built for shooters who refuse to compromise between firepower and carry comfort. With a 3.1-inch barrel, Nitron-finished stainless steel slide, and XSeries grip module, this is serious concealed-carry hardware engineered for real-world everyday carry. The P365X ships with the Romeo-X Compact red-dot optic already mounted—no gunsmith, no alignment guessing—so you can trust your zero from day one.

What sets the P365X apart in the crowded micro-compact market is the combination of usable capacity and genuine shootability. Twelve rounds in a double-stack magazine means you're not sacrificing ammunition count for size. The XSeries grip module includes an integrated carry magwell and extended beavertail, improving both handling and control when you need it. Two magazines come in the box—one 12-round and one 10-round—giving you carry flexibility and a backup.

The sights are XRAY3 day/night tritium models, a professional-grade setup that works in daylight or darkness without relying on batteries. The flat trigger breaks clean and predictable, and the overall dimensions—6 inches long, 5.5 inches tall, just 1.1 inches wide—make this gun genuinely concealable in pocket carry, appendix, or strongside rigs. At 18 ounces loaded, it won't slow you down or print through cover garments.

Whether you're looking for a dependable EDC piece, a deep-concealment backup, or an entry point to Sig's P365 platform, the P365X combines factory optics, proven reliability, and compact-gun ergonomics in one ready-to-go package.

Key Features

• Romeo-X Compact red-dot optic pre-installed and zeroed
• Nitron stainless steel slide and frame for corrosion resistance
• XSeries grip module with integrated carry magwell and extended beavertail
• 3.1-inch barrel optimized for concealment without sacrificing sight radius
• XRAY3 tritium day/night sights for low-light engagement
• Flat striker-fired trigger
• Two magazines included (one 12-round, one 10-round)
• Slim 1.1-inch profile for pocket and appendix carry

Specifications

Frequently Asked Questions

Does the P365X come with the red-dot already mounted?

Yes. The Romeo-X Compact optic arrives installed on the slide and ready to use. You won't need to source a mount or visit a gunsmith.

Is this a good concealed-carry gun?

The P365X is purpose-built for EDC. The 3.1-inch barrel, thin 1.1-inch profile, and 18-ounce loaded weight make it easy to carry appendix, strongside, or pocket without printing. The 12-round standard magazine gives you serious capacity in a micro-compact footprint.

What sights come standard on the P365X?

The P365X is equipped with XRAY3 tritium day/night sights, which are visible in bright daylight and glow in darkness without requiring battery power. These work independently of the installed Romeo-X optic, so you have a reliable backup aiming system.

How many magazines are included?

Two steel magazines come in the box: one 12-round and one 10-round capacity. This gives you flexibility for different carry modes or situations.