Description
The Sig Sauer P320 XFive SXG 9mm 5″ Stainless — 3x21rd Mags is a full-size competition pistol built for shooters who want a steel frame without the weight penalty. This model combines a stainless steel slide and grip module with a bull barrel and adjustable sights, giving you a stable platform for fast follow-up shots. It ships with three 21-round steel magazines, so you can spend more time shooting and less time reloading.
| Manufacturer | Sig Sauer |
|---|---|
| Model | P320 XFive SXG |
| Material | Stainless steel slide, stainless steel grip module, G10 LOK panels |
| Compatibility | P320 holsters and accessories, SIG SAUER PRO optics footprint |
| Finish | Stainless |
| Weight | 44.5 oz (unloaded, per manufacturer specs) |
| Condition | New |
Key Features
- Steel frame construction — WHY IT MATTERS: The stainless steel grip module lowers the bore axis and shifts weight rearward, reducing muzzle flip and felt recoil so you can keep the sights on target between shots.
- 5″ bull barrel — WHY IT MATTERS: A bull barrel adds mass at the muzzle for stability during rapid fire and delivers a longer sight radius for more precise aiming at distance.
- Optic-ready PRO footprint — WHY IT MATTERS: This cut accepts SIG SAUER and compatible red dots directly, letting you mount a dot without plates or adapters for a lower, more secure fit.
- Fiber optic front sight and adjustable rear sight — WHY IT MATTERS: The bright fiber optic front gives you a fast sight picture in any light, while the rear adjusts for windage and elevation to zero your dot or iron sights.
- Three 21-round steel magazines — WHY IT MATTERS: You get enough capacity for competition stages, range sessions, or training drills without needing to buy extra mags right away.
Who It’s For
This pistol is built for competition shooters and serious range enthusiasts who want a heavier, more stable platform than polymer-frame handguns. It also suits shooters new to steel-frame guns who value reduced recoil and a flat shooting experience.
Pros & Cons
- Pro: Steel frame soaks up recoil without adding too much weight — 44.5 oz loaded feels planted but not sluggish.
- Pro: Three high-capacity magazines included saves you $100+ in accessories.
- Con: The stainless finish shows holster wear more quickly than coated finishes, so plan for light maintenance.
Comparison vs. Competitors
| Feature | Sig Sauer P320 XFive SXG | Zev Technologies OZ9C | Agency Arms Agency Premier |
|---|---|---|---|
| Frame Material | Stainless steel | Aluminum | Stainless steel |
| Barrel Length | 5″ bull | 4.49″ threaded | 5″ match |
| Optic Cut | PRO footprint | RMR footprint | RMR footprint |
| Magazines Included | 3x 21rd | 2x 17rd | 2x 17rd |
| Price | $1,849.99 | $2,199.00 | $2,495.00 |
If you want a dedicated competition pistol with a steel frame and high capacity, the XFive SXG gives you more magazines and a lower price than the Zev or Agency options. The Zev and Agency guns offer different optic footprints and are better suited for custom builds, but the SXG is ready to shoot out of the box.
FAQ
Does this pistol come with optic mounting plates?
No, the slide is cut with the SIG SAUER PRO footprint, so you need a red dot that uses that pattern directly, such as the SIG SAUER Romeo1 Pro or Romeo2. Adapter plates for other footprints are available separately.
What holsters fit the Sig Sauer P320 XFive SXG?
Holsters made for the P320 full-size with a 5″ barrel and accessory rail will work. Most competition holsters from companies like Safariland, Blackhawk, and G-Code are compatible. The steel grip module is slightly wider than the polymer version, so test-fit before buying.
Is this pistol legal in all 50 states?
The 21-round magazines exceed capacity limits in states like California, New York, and Massachusetts. We ship to all 50 states, but you are responsible for knowing your local laws. If your state restricts magazine capacity, we can block the magazines to 10 rounds upon request.
Can I use this for carry or home defense?
This is a competition pistol, not a carry gun. The steel frame and full-size grip make it heavy for concealed carry. For home defense, the 5″ barrel and high capacity work well, but the lack of a manual safety (it uses a trigger safety only) may be a concern for some users.
Why Buy From Us
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
Browse more Semi Auto Handguns or check out our Competition Pistols collection. Last updated: April 2026. According to NSSF data, steel-frame pistols now account for 18% of competition handgun sales, reflecting the growing preference for reduced recoil in action shooting sports.
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