
See our Best Red Dot Sights roundup
Ranked picks with our Optics Score →
More Sig Sauer optics
Explore the full lineup →
Description
The Sig Sauer SIG SORX1390 ROMEO-X REFLX SIGHT 6MOA GRN DOT delivers fast, intuitive target acquisition with a crisp 6 MOA green dot that remains highly visible in a variety of lighting conditions. Built for Picatinny rails, this reflex sight is designed to mount securely on a wide range of setups, with an objective range up to 24mm that accommodates different mounting configurations while preserving a compact, low-profile footprint. The ROMEO-X design focuses on reliable performance and quick aim recovery, making it a practical choice for dynamic shooting scenarios, from range drills to field use, where rapid sight picture and consistent dot intensity matter. Its Sig Sauer pedigree reinforces durability and confidence, while the 6 MOA dot size provides a balance between speed and precision across close to mid-range engagements. This sight is ideal for hunters, sport shooters, and professionals seeking a dependable aiming solution that simplifies sight alignment and reduces targeting time without sacrificing accuracy, ensuring a smooth, natural sighting experience under varied conditions.
Specifications
- Part Type
- red_dot_or_sight
More from Sig Sauer

Sig Sauer
Sig Sauer M18 X-Carry 9mm Pistol with Romeo-M17 Red Dot Sight - 3.9""
$1430

Sig Sauer
SIG Sauer P220 Legion SAO .45 ACP Full Size Optic Ready Handgun - 4.4"" - Legion Gray
$1300

Sig Sauer
Sig Sauer P320-XFIVE DH3 9mm Optic Ready Pistol - 21 Round - 5""
$1330

Sig Sauer
Sig Sauer KILO3000BDX Laser Range Finder Binocular 10X42mm with Bluetooth - OD Green
$1230

Sig Sauer
SIG Sauer P365 X-Macro Comp Optic Ready 9mm Pistol - Two 17 Round Mags
$800

Sig Sauer
Sig Sauer ROMEO M17 Red Dot Sight
$700
Sig Sauer
Sig Sauer Romeo-X Reflex Sight 6 Moa Green Dot Picatinny Mount Up To 24mm
Starting at
$569.99
1 in-stock retailer
Compare Prices
- Shooting SurplusLOWESTIn stock$569.99Buy
Affiliate disclosure: some links on this page are affiliate links. If you buy through them, we may earn a commission at no extra cost to you. Our editorial process and scoring is not influenced by commissions. See our affiliate policy.