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SIG Sauer P320 M18X RX X-Carry 9mm Brown Pistol w/ ROMEO-M17

The SIG Sauer P320 M18X RX combines the M18 compact configuration with an X-Carry grip module and factory-installed ROMEO-M17 red dot optic. Chambered in 9mm, it features a 3.9-inch rifled barrel, a flat X-Series trigger, SIGLITE night sights, and a polymer frame in a brown finish. Its 21+1 capacity, integral Picatinny rail, and manual safety provide a practical setup for duty, range, and defensive applications.

Key features

  • Factory-installed ROMEO-M17 red dot optic for fast target acquisition
  • Compact 3.9-inch 9mm configuration with 21+1 capacity
  • Coyote Brown X-Carry polymer grip module with integrated magwell
  • Flat X-Series trigger for a consistent trigger press
  • SIGLITE night sights provide visible aiming references in low light
  • Integral Picatinny rail supports compatible accessories

The SIG Sauer P320 M18X RX delivers a compact, optic-equipped configuration with practical capacity and adaptable controls.

SIG Sauer P320 M18X RX X-Carry 9mm Brown Pistol w/ ROMEO-M17: quick facts

What caliber is the SIG Sauer P320 M18X RX X-Carry 9mm Brown Pistol w/ ROMEO-M17?
It is chambered in 9mm.
How many rounds does it hold?
21+1 rounds; magazines included: 3.
How big and heavy is it?
Barrel length 3.9 inches, overall length 7.2 inches, weight 30.8 ounces.
What kind of action does it use?
Semi-Automatic.
Is it optic ready or threaded?
Optic ready: Yes; threaded barrel: No.
What sights and finish does it have?
Sights: Night Sights; finish: Brown.
Is it new or used?
New, in the original packaging.
Can I buy it in Delaware?
Yes. It ships to a licensed FFL dealer in Delaware; you pick it up there after the background check. Delaware buyers need a handgun qualified purchaser permit or a current Delaware carry license before a dealer can transfer this pistol.
Is it in stock?
Yes, at $1644.49. Orders leave within 1-2 business days; shipping is free over $999.

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