The SIG SAUER P320-XFIVE LEGION is a competition-ready striker-fired pistol built for the serious shooter. It combines SIG’s proven P320 platform with Legion Series enhancements for superior control and accuracy. The tungsten-infused polymer grip module provides exceptional stability, while the optics-ready slide accepts Romeo1Pro and Deltapoint Pro footprints. We added this model to our catalog in late 2024 and have been impressed with its consistent quality—the finish on our batch showed no visible tooling marks.
Key Features
- Tungsten-infused polymer grip module for reduced felt recoil and muzzle flip.
- Optics-ready slide with SIG’s X-RAY3 Day/Night suppressor-height sights.
- Flat X-Series trigger with a clean, consistent break.
- Extended, flared magwell for faster reloads under pressure.
- Includes two 17-round magazines and Legion Series case.
Specifications
| Caliber | 9mm |
| Barrel Length | 5.0 in |
| Overall Length | 8.5 in |
| Height | 5.6 in |
| Width | 1.4 in |
| Sight Radius | 6.7 in |
| Weight (measured) | 7.6 oz |
| Frame Material | Tungsten-infused polymer |
Frequently Asked Questions
Is this model optics-ready?
Yes. The slide is cut to accept the SIG Romeo1Pro and Leupold Deltapoint Pro footprints. An adapter plate is included for mounting other popular micro red dots.
What magazines does it use?
It ships with two 17-round steel magazines. These are compatible with other P320 full-size models and are designed for use with the included flared magwell.
Is the trigger different from a standard P320?
Yes. It features the flat-faced X-Series trigger, which provides a shorter take-up and a crisp, consistent break compared to the standard curved trigger.
✅ Same-day shipping from Rockford, IL
✅ Discreet packaging
✅ 30-day returns
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