Sig Sauer P365-FLUX Handgun 9mm Luger 21(2)&17(1)rd Magazines 6" Barrel Brace- No Optic

The Sig Sauer P365-FLUX is a 9mm handgun that bridges the gap between a compact carry pistol and a rifle-style platform. Built on the proven P365 platform, the FLUX adds a spring-deployable brace, muzzle shroud, and extended sight radius to deliver the handling speed of a pistol with the control and stability you'd expect from a modern carbine-style firearm. This no-optic version ships with three magazines—two 21-rounders and one 17-rounder—giving you serious round capacity for training, competition, or defensive use without mounting an optic.

The FLUX's compact footprint (19.12 inches overall with the brace deployed) makes it agile in tight spaces while the 6-inch barrel and Picatinny rail front mount create a platform ready for lights, lasers, or other mission-essential gear. Ambidextrous controls and XRAY3 day/night sights let either hand run the gun effectively, and the flat-faced striker trigger breaks clean and predictable. The 5.6-inch sight radius gives you precision without forcing a longer platform, and the optic-ready slide means you can add a red dot or other sight system down the line.

Built with stainless steel frame and slide finished in Sig's durable Nitron coating, the P365-FLUX handles hard use. The FLUX grip module and polymer grips provide a secure, controllable hold, while the integrated muzzle shroud protects your hand and secures a solid firing position. Whether you're running it at the range, in a defensive role, or as a dedicated training platform, the FLUX delivers capacity, control, and versatility in a package that doesn't sacrifice the fast-handling character of the P365 line.

Key Features

• Spring-deployable brace for rapid deployment and stabilized shooting
• Three magazines included: two 21-round and one 17-round steel mags (46-round total capacity)
• Compact PDW form factor—19.12 inches overall deployed, fits where traditional PCC platforms don't
• 6-inch barrel with integrated muzzle shroud and front Picatinny rail for accessories
• XRAY3 day/night sights for low-light and daylight readiness
• Ambidextrous manual safety, dual magazine release, and controls
• Optic-ready slide for easy red-dot installation
• Flat-faced striker trigger for clean, predictable breaks
• Stainless steel frame and slide with Nitron finish for durability
• 1913 Picatinny rail for lights, lasers, and tactical accessories

Specifications

Frequently Asked Questions

What comes in the box with the P365-FLUX?

This model ships with three magazines: two 21-round steel magazines and one 17-round steel magazine. No optic is included, but the slide is optic-ready if you want to add a red dot or other compatible sight system.

Is the P365-FLUX optic-ready, and what mounts does it accept?

Yes, the slide is optic-ready. The gun also includes a front 1913 Picatinny rail for mounting lights, lasers, and other tactical accessories.

Can I fold or collapse the brace on the P365-FLUX?

Yes. The brace is spring-deployable for rapid utilization, and it folds to 1.52 inches width. Deployed, it sits at 1.34 inches wide and provides the stabilization and control of a brace-equipped platform.

What sights come standard on the P365-FLUX?

The P365-FLUX ships with XRAY3 day/night sights, which provide low-light capability and daylight readiness. These are fixed sights with a 5.6-inch sight radius.