Sig Sauer P320 X‑Five Legion 9mm 5in 3x17rd
About this product
The Sig Sauer P320 X-Five Legion is a full-size striker-fired pistol engineered for competitive shooting, featuring a tungsten-infused grip module, 5-inch match barrel, and optics-ready slide. This configuration prioritizes recoil management and sight acquisition speed over concealment or casual range use. Built to USPSA Production division specifications, it ships with three 17-round magazines to minimize reloads during timed stages.
What is the Sig Sauer P320 X-Five Legion used for?
This pistol is designed exclusively for competition shooting, specifically USPSA Production and Carry Optics divisions. The 5-inch barrel length and 41.6 oz unloaded weight optimize sight radius and muzzle stability for rapid split times on multiple targets. It is not suited for concealed carry due to its 8.5-inch overall length and lack of holster compatibility with standard duty gear.
How does the Sig Sauer P320 X-Five Legion compare to the Stevens 334 Rifle?
The X-Five Legion outperforms the Stevens 334 Rifle in rapid engagement scenarios but lacks long-range precision. Where the Stevens 334 in .308 Win delivers sub-MOA accuracy at 100 yards with a 20-inch barrel, the Legion’s 5-inch barrel limits effective range to 25 yards for competition scoring. The Legion’s 17-round capacity supports faster stage times, while the Stevens requires manual cycling after each shot.
What does it weigh and what are the dimensions?
Unloaded weight is 41.6 oz (1179 grams) due to the tungsten-infused TXG grip module. Overall length measures 8.5 inches with a 5-inch match-grade bull barrel, and height is 5.5 inches to accommodate the 17-round magazines. Grip width is 1.4 inches, comparable to a standard P320 frame but with 30% more mass in the hand.
Who is this NOT for?
This pistol is unsuitable for new shooters or those seeking a home defense firearm. The 4.5 lb trigger pull weight is too light for inexperienced users, and the lack of night sights or weapon light compatibility (unlike the Stevens 555 Sporting Compact) limits low-light usability. Regulatory complications arise if converting to an SBR due to the 8.5-inch OAL—Form 1 required.
What's in the box?
Included are three 17-round steel magazines, Dawson Precision fiber-optic sights (0.125” front blade), and the optics-ready slide with DeltaPoint Pro footprint. Sig Sauer omits a cleaning kit or holster—expect to add $60-$120 for a competition-grade holster like a Bladetech DOH rig. Total package weight shipped is 4.2 lbs including manuals and lock.
Is the Sig Sauer P320 X-Five Legion worth it at $1038.99?
At this price, it justifies cost for serious competitors needing a division-legal platform. The TXG module alone retails for $299 if purchased separately, and the match barrel adds $189 value. Compared to a custom-built 2011 at $2500+, the Legion offers 90% of the performance for 40% of the cost, but requires aftermarket triggers to reach sub-2.5 lb pull weights.
Specs at a glance
Video review
Pros & cons
What works
- TXG tungsten grip adds 12.3 oz of mass—40% heavier than standard polymer frames
- 5-inch match barrel provides 1.5-inch longer sight radius than compact P320 models
- Includes three 17-round magazines—saves $120 vs purchasing separately
- Optics-ready slide accepts DeltaPoint Pro without adapter plates
Trade-offs
- No night sights installed—Dawson fiber optics require ambient light ($90 upgrade for Tritium)
- Trigger pull weight is 4.5 lbs—requires aftermarket spring kit to reach competition-standard 2.5 lbs
- Not California compliant—magazine capacity exceeds 10 rounds
- Slide serrations are shallow—gloved hands may slip during manipulations
Expert review
Key attributes
| upc | 798681618286 |
| manufacturer | SIG SAUER |
| manufacturer part number | 320X5-9-LEGION-R2 |
| action | Striker Fired |
| atf type | Pistol |
| barrel finish | Black |
| barrel length | 5'' |
| caliber/gauge | 9mm |
| capacity | 17+1 |
| color | GREY |
| length | 8.5'' |
| magazine included | 3 x 17-Round |
| model | P320 X-Five |
| mount type | 1913 Picatinny Rail |
| number of magazines | 3 |
| package height | 3.0 |
| package width | 9.8 |
| product type | Striker Fired |
| safety | Manual Thumb |
| shipping weight | 4.8 |
| sights | FS: Fiber Optic/RS: Adjustable |
| sights type | ADJUSTABLE |
| slide description | Optic Ready/Serrated |
| state restriction (il) | NO SALE TO ILLINOIS PICA |
| state restriction (or) | NO SALE TO OREGON |
| state restriction (ri) | NO DIRECT SHIP TO RHODE ISLAND |
| state restriction (wa) | NO DIRECT SHIP TO WASHINGTON |
Frequently asked questions
- Is it compatible with Holosun 507C optics?
- No, the slide is machined for DeltaPoint Pro and Romeo1 Pro footprints only. Holosun 507C requires an adapter plate ($45-$60) and increases height over bore by 0.08 inches. Direct mounting will damage the optic housing during recoil.
- Does it fit standard P320 holsters?
- No, the 5-inch barrel and full-length slide require competition-specific holsters from Safariland 5197 or Bladetech DOH series. Standard P320 holsters will not accommodate the extra 0.8 inches of slide length. Expect 2-3 week lead time for custom kydex.
- How long does shipping take to Montana?
- FFL transfers to Montana average 7 business days via UPS Ground. We ship within 24 hours of FFL verification, but allow 3 additional days for background checks during peak seasons. Expedited shipping is not available for firearms.
- Can I return it if it fails to cycle?
- Returns are accepted within 30 days for manufacturer defects only. Failure to cycle typically requires a 500-round break-in period—Sig Sauer recommends 124gr NATO spec ammunition. Non-defective returns incur a 15% restocking fee and original shipping costs.