Description
The SIG Sauer P320 X-Full 9mm 4.7in XRay3, 2x17rd is a full-size XSeries handgun built for practical shooting and optics-ready performance. It combines a 4.7-inch carbon-steel barrel, Nitron-finished slide, and X-Ray3 day/night sights with an optic-ready rear plate for popular micro red-dot footprints. Packing two 17-round steel magazines and an M1913 accessory rail, this 9mm pistol delivers the reliability and accuracy you need for urban carry or home defense.
| Manufacturer | SIG Sauer |
|---|---|
| Model | P320 X-Full |
| Caliber | 9mm |
| Barrel Length | 4.7 inches |
| Magazine Capacity | 17 rounds |
| Magazines Included | (2) 17-round steel magazines |
| Sights | X-Ray3 day/night sights |
| Slide Material | Carbon steel with Nitron finish |
| Frame Material | Polymer with integrated accessory rail |
| Weight | 29.5 oz (empty, per manufacturer specs) |
| Condition | New |
Key Features
- Optics-Ready Slide: The rear plate is pre-cut for popular micro red-dot footprints. Why it matters: You can mount a dot without sending the slide to a gunsmith—faster target acquisition in low-light apartment hallways.
- X-Ray3 Day/Night Sights: Tritium inserts with bright front ring for instant sight picture day or night. Why it matters: When the lights go out at 2 AM, you don’t lose your zero.
- Two 17-Round Steel Magazines: Double-stack capacity with flush-fit baseplates. Why it matters: You get 34 rounds total out of the box—enough for a defensive scenario and a reload.
- M1913 Accessory Rail: Full-length rail under the dust cover. Why it matters: Mount a compact light or laser without adapters—critical for identifying threats in dark urban environments.
- Nitron-Finished Slide: Corrosion-resistant carbon steel finish. Why it matters: Sweat, rain, or humidity won’t rust your slide—this gun holds up to daily carry.
Who It’s For
This is for the city dweller who wants a full-size frame with optics compatibility, but still needs a gun that fits in a nightstand safe or range bag. It’s for CCW holders who train with red dots and want a duty-size pistol that shares controls with their compact EDC. Apartment dwellers will appreciate the 17-round capacity—less time reloading, more time focusing on the threat.
Pros and Cons
- Pro: Optics-ready out of the box—saves you $100+ on slide milling.
- Pro: X-Ray3 sights are bright and durable, even in complete darkness.
- Con: Full-size grip may be too long for concealed carry under a light shirt—better for open carry, range use, or home defense.
Comparison: SIG Sauer P320 X-Full vs. Competitors
| Feature | SIG Sauer P320 X-Full | Zev Technologies OZ9C | Agency Arms AOS Glock 17 |
|---|---|---|---|
| Caliber | 9mm | 9mm | 9mm |
| Barrel Length | 4.7 inches | 4.5 inches | 4.49 inches |
| Magazine Capacity | 17 rounds (2 included) | 17 rounds (1 included) | 17 rounds (1 included) |
| Optics Ready | Yes (micro red-dot footprint) | Yes (RMR footprint) | Yes (Agency AOS system) |
| Sights | X-Ray3 day/night | Suppressor-height (no tritium) | Standard Glock (no night sights) |
| Price | $729.99 | $1,499.00 | $1,395.00 |
| Weight (empty) | 29.5 oz | 26.5 oz | 27.8 oz |
The SIG Sauer P320 X-Full gives you a proven platform with night sights and two magazines at half the price of custom builds from Zev or Agency. You lose some aftermarket flex, but you gain factory reliability and a track record of over 1 million P320s sold (as of 2025, per SIG Sauer).
FAQ
Does this pistol come with a red-dot sight?
No, the SIG Sauer P320 X-Full 9mm 4.7in XRay3, 2x17rd does not include a red-dot sight. The slide is optic-ready with a removable rear plate that fits micro red-dot footprints like the SIG Romeo1Pro, Leupold DeltaPoint Pro, and Trijicon RMR (with adapter). You’ll need to buy the optic separately.
Can I carry this concealed?
Yes, but it’s a full-size frame with a 4.7-inch barrel. It’s better suited for open carry, duty use, or home defense. If you want to conceal it, you’ll need a quality holster with a sturdy belt. Most urban CCW holders prefer the P320 Compact or X-Carry for everyday concealment.
What holsters fit this model?
Holsters designed for the SIG Sauer P320 Full-Size (4.7-inch barrel) will fit. Look for brands like Safariland, Blackhawk, or Tier 1 Concealed. The M1913 rail means most light-bearing holsters also work if you mount a compatible light.
Is this California-legal?
No, the P320 X-Full is not on the California Roster of Handguns Certified for Sale. It cannot be shipped to a California FFL. Check your state’s laws before ordering.
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Order the SIG Sauer P320 X-Full 9mm 4.7in XRay3, 2x17rd today. Nationwide delivery to all 50 states (excluding restricted areas). Ships in 1–2 business days from our warehouse. 30-day return policy. Secure checkout with encryption.
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Last updated: April 2026
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