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SIG SAUER P320 Safety Information
July 29, 2025
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Sig Sauer P320 X5 9mm Full-Size Two-Tone Pistol with ROMEO1 Reflex Sight

  • Item Number: 320X5-9-TAS-R1
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  • View More Items by Sig Sauer
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  • Condition: NEW
Sig Sauer P320 X5 9mm Full-Size Two-Tone Pistol with ROMEO1 Reflex Sight
$819.99 $1,209.99

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Product Description

What's in the Box

  • Sig Sauer P320 X5 9mm Stainless Pistol
  • ROMEO1 Reflex Sight
  • (4) 21-Round Magazines
  • Cable Lock
  • Owner's Manual

The Sig Sauer P320 X-Five 9mm is the full-size variant in Sig's brand new P320 X-Series. The X-Five incorporates multiple features to maximize accuracy, shootability and ergonomics while maintaining the modularity of the standard P320 platform. Those features include:

  • Exclusive X-Series grip module
  • Deeper trigger guard undercut
  • Higher back strap and an extended beavertail to ensure a higher grip for better recoil management
  • Removable grip weight for improved balance
  • Removable magazine funnel and extended slide catch lever to facilitate faster reloads
  • Straight trigger that breaks at 90 degrees for an even better feeling pull
  • 5" bull barrel and lightened slide pair perfectly for match-grade accuracy
  • Dawson Precision® Fiber Optic front sight
  • Fully-adjustable rear sights
  • Rear sight plate can be easily removed as a unit and replaced with a ROMEO1 optic, which means every P320 X-Five pistol is optics-ready right out of the box
  • Four (4) 21-round steel magazines

About the ROMEO1

The ROMEO1 Miniature Reflex Sight is the ideal sighting solution for the modern semi-automatic pistol, MSR platforms, and shotguns. Features a molded glass aspheric lens with high performance coatings for superior light transmittance and zero distortion. Manual illumination controls remember your last used settings. Three MOA Red-Dot with multiple intensity settings ensures rapid target engagement under a full range of lighting conditions. The readily available CR1632 battery is top-loading, allowing for quick battery replacement without having to remove the sight from the firearm. Extremely strong and lightweight aircraft grade CNC Magnesium housing ensuring a lifetime of reliable service. Dependable waterproof (IPX-7 rated for complete immersion up to 1 meter) and fog-proof performance.

  • Magnification: 1x
  • Objective Clear Aperture: 30 mm
  • Illumination Settings: 5 Daytime / 2 Night
  • Dot Size: 3 MOA
  • Dimensions: Length 1.8" x Width 1.3" x Height 1.1"
  • Weight: 0.8 oz

Firearm Specifications

  • Manufacturer: Sig Sauer
  • Model: P320 X-Five
  • Series: X-Series
  • SKU: 320X5-9-TAS
  • Caliber: 9mm Luger
  • Magazines: Four 21-Round Steel Magazines
  • Frame Material: Polymer
  • Slide Finish: Stainless
  • Slide Material: Stainless Steel
  • Barrel Material: Carbon Steel
  • Accessory Rail: M1913
  • Front Sight: Dawson Precision® Fiber Optic front sight
  • Rear Sight: Fully-adjustable
  • Threaded Barrel: No
  • Action: Striker-fired
  • Barrel Length: 5 in.
  • Sight Radius: 6.8 in.

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