Sig Sauer ROMEO4XT-PRO 1x20mm Ballistic Circle Dot Red Dot Sight, Black

Sig Sauer ROMEO4XT-PRO 1x20mm Ballistic Circle Dot Red Dot Sight Features and Performance

The Sig Sauer ROMEO4XT-PRO 1x20mm Ballistic Circle Dot Red Dot Sight is built for shooters who want a compact optic that emphasizes speed, durability, and modern rifle-ready performance. The ROMEO4XT-PRO is part of SIG SAUER’s enclosed-emitter rifle optic lineup, giving buyers a more protected design than many traditional open-emitter red dots. That added protection is especially appealing for AR-pattern rifles, defensive carbines, and other hard-use platforms where reliability in rough conditions matters just as much as fast target acquisition.

This version is identified under part number SOR44001, and SIG SAUER’s 2024 price list directly ties that model to UPC 798681661534. SIG describes it as the black ROMEO4XT-PRO with a Ballistic Circle Dot reticle, 0.5 MOA adjustment values, AAA battery power, and a hex bolt mount with spacer. Matching retailer listings also confirm the 1x20mm format, black finish, and enclosed emitter configuration. That matters because the ROMEO4XT-PRO family includes nearby Flat Dark Earth and alternate variants, and this SKU is specifically the black ballistic circle dot version.

The Ballistic Circle Dot reticle gives the shooter a fast and highly visible aiming solution that works especially well on practical rifles. Retailer listings commonly describe this reticle as a 2 MOA center dot paired with a 65 MOA outer circle, which is a familiar layout for shooters who want rapid target pickup without losing a more precise aiming point for deliberate shots. That combination makes the optic attractive for close-range speed, transitions between targets, and general-purpose carbine work where both visibility and control matter.

Matching listings also describe top-mounted activation with a night vision override control, up to 50,000 hours of runtime, and three mounting heights included in the box. Other retailer specifications list 9 daylight settings, 3 night vision settings, IPX8 waterproofing, and a rugged 7075-T6 aluminum housing. Together, those details reinforce the ROMEO4XT-PRO’s role as a serious rifle optic designed for hard use rather than a basic recreational red dot.

The AAA battery format is another practical advantage for many buyers. It keeps replacement batteries simple and widely available while still supporting long runtime. Combined with the included hex bolt mount and spacer, the optic is easy to integrate into a modern rifle setup while offering flexibility for different mounting heights and shooting preferences.

If you are building out a complete rifle optic setup, you can browse more options in our
Optics & Optics Accessories
collection. You can also explore additional compatible sighting options in our
Red Dots & Non-Magnified Optics
category.

For manufacturer information and additional product details, visit
SIG SAUER.

• Manufacturer: Sig Sauer
• Model: ROMEO4XT-PRO
• MPN: SOR44001
• UPC: 798681661534
• Magnification: 1x
• Objective Lens Diameter: 20mm
• Reticle: Ballistic Circle Dot
• Common Retail Reticle Listing: 2 MOA Dot / 65 MOA Circle
• Color: Black
• Adjustment Click Value: 0.5 MOA
• Battery: AAA
• Emitter Type: Enclosed
• Mount Type: Hex bolt mount with spacer
• Brightness Settings: 9 daylight / 3 night vision