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SIG SAUER Pro P320 9mm Romeo X Pro XRAY3 Sights Barrel Assembly
As Low As $469.99 Save Up to 33%
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Most Helpful Positive Review Excellent slide and optics package
Rebuilt one of my P320s into an EDC setup. Slide assembly works perfectly as expected. Deal with the optic is a steal! Big fan of the Romeo X Pro with the circle-dot. Optic is very crisp and easy to operate. The co-witness with the iron sights is dead on out to 25yds straight out of the box. I would highly recommend this to anyone in the market for a P320 compact sized slide assembly, definitely saves some $$ over buying the slide and optic separately. Shipping was very quick too, many thanks OP team!
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Smooth & Flawless

by Willz, Verified Owner from TX, United States Written on July 15, 2025
Flawless craftsmanship as to be expected from Sig. Drop in ready, 20 clicks down @15yards was the only adjustment made. 500 rounds Magtec 124gr with two inch groups. Now fully broken in.
Pros:
  • Quick target acquisition
Cons:
  • N/A
Best Used for:
  • Duty or IDPA
Would recommend: Yes
Was it helpful to you? Yes | No

Amazing price

by David, Verified Owner from MI, United States Written on March 22, 2025
The slide comes assembled add your barrel and guide rod good to go . Optic is multi reticle dot, circle dot. and circle 560.00 shipped awesome price
Pros:
  • Everything about it
Cons:
  • None
Best Used for:
  • 3.9 p320
Would recommend: Yes
Was it helpful to you? Yes | No

Sig P320 FS Slide and Romeo X Pro red dot

by JM, Verified Owner from MO, United States Written on March 4, 2025
Slide and sight delivered in great shape and is a very nice upgrade to my P320. I wish OP would take the time to answer questions about items... This isn't the full enclosed red dot sight, but it's nice having the complete Slide and romeo x pro combo at a reduced price.
Pros:
  • Complete slide and red dot sight
  • Complete slide and red dot sight. FS barrel, guide rod and recoil spring drop in fit
Cons:
  • Red dot description not complete. This Romeo X Pro is not fully e
  • Not fully enclosed red dot
Would recommend: Yes
1 of 1 found the following review helpful.
Was it helpful to you? Yes | No

great deal

by recoil, Verified Owner from NC, United States Written on March 1, 2025
first- this is the open optic.
second- it does *not* come with a barrel and recoil assembly.
third- it's great. optic is clear, and the slide is OEM.
Pros:
  • None
Cons:
  • no barrel
  • no recoil spring
Would recommend: Yes
Was it helpful to you? Yes | No

Why Not, best kept secret!

by BillW, Verified Owner from TX, United States Written on February 14, 2025
Love the new slide with Romeo X Pro optic. Slid it onto my M17 and went to the range. Shot some of my best groups. So, what about the best kept secret? The Romeo X Pro optic cost is about $450+- dollars, a bare P320 slide cost is about $350 +-. For a little more than the cost of the optic, I got both. Now in a matter of seconds, I can alternate my configuration. Don't overlook this fact, with the Sig Romeo X Pro, the iron sights co-witness thru the optic - without needing "optic height sights". If you already have a holster, you can appreciate this advantage.
Pros:
  • cost
  • co-witness
Cons:
  • None
Best Used for:
  • It's a P320, it does it all.
Would recommend: Yes
Was it helpful to you? Yes | No

Sig Sauer P320 with Romeo X Pro

by Sig FCU for the win, Verified Owner from NY, United States Written on January 16, 2025
Switched my full size pistol to a subcompact with a red dot. Bought a matching barrel recoilspring and X-series handgrip at the same time. Easy to switch over the FCU and zero the optic. It doesn't feel like the overall weight changed significant and my groups at defensive range did not change significantly.
Pros:
  • Easy change especially in restrictive jurisdictions like NYC.
  • Feel like I align sights and am aimed and ready for followup shots more quickly.
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Romeo X Pro X Compact

by Donkeh, from MN, United States Written on January 4, 2025
Awesome sight. Has 3 reticle options: dot, circle dot or circle. Has the ability to be VERY bright. The sight is short enough and cut is low enough to co-witness with the factory irons. The sight was made for this gun
Pros:
  • durable
  • bright
  • Multiple reticles
  • cowitness
Cons:
  • not enclosed
Would recommend: Yes
Was it helpful to you? Yes | No
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