Sig Sauer ROMEO4T 1x20 Red Dot Sight - Black, 1 MOA Dot, Ballistic CirclePlex, 0.5 MOA AdjSig Sauer$499.43
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Sig Sauer
The Sig Sauer ROMEO4S 1x20 red dot sight brings a proven, no-nonsense optic to shooters who value speed and simplicity across pistols, MSR platforms, and shotguns. Built on a CNC-machined aluminum housing, the ROMEO4S is rugged enough for serious use yet compact enough to stay out of your way. The 1 MOA red dot sits within a Ballistic CirclePlex reticle—a practical design that gives you both a sharp aiming point and reference geometry for rapid target acquisition at close to medium range.
Battery life is where this optic shines: the ROMEO4S runs for over 100,000 hours using a combination of solar and battery power, so you're not constantly swapping cells or worrying about dead glass when you need it. The graphite finish is subdued and professional, and the optic ships with see-through lens covers and a quick-release mount—everything you need to get running fast.
Whether you're training at the range, running a tactical course, or keeping your duty or carry gun sharp, the ROMEO4S delivers the speed of a red dot in a form factor that works across a wide spectrum of firearms and shooting styles. The 0.5 MOA adjustment increments give you the precision to dial in a true zero without fussing with oversized knobs.
| Magnification | 1x |
| Objective Lens | 20mm |
| Reticle Type | 1 MOA Dot with Ballistic CirclePlex (Red) |
| Adjustment Increment | 0.5 MOA |
| Housing Material | CNC Aluminum |
| Finish | Graphite |
| Battery Runtime | 100,000+ hours (solar and battery combined) |
| Included Accessories | See-through lens covers, quick-release mount |
The ROMEO4S is designed for modern semi-automatic pistols, MSR platforms, and shotguns. Use your specific firearm's mounting interface to confirm fit with the included or optional quick-release mount.
The ROMEO4S delivers over 100,000 hours of runtime using a combination of solar charging and battery power, meaning you'll get extended use between battery changes under normal conditions.
The optic comes standard with see-through lens covers for protection in the field and a quick-release mount for fast installation and removal.
Yes. The 1x magnification, compact form factor, and fast-acquisition Ballistic CirclePlex reticle make the ROMEO4S well-suited for short and medium-range engagements where target speed matters.
Sig Sauer
The Sig Sauer ROMEO4S 1x20 red dot sight brings a proven, no-nonsense optic to shooters who value speed and simplicity across pistols, MSR platforms, and shotguns. Built on a CNC-machined aluminum housing, the ROMEO4S is rugged enough for serious use yet compact enough to stay out of your way. The 1 MOA red dot sits within a Ballistic CirclePlex reticle—a practical design that gives you both a sharp aiming point and reference geometry for rapid target acquisition at close to medium range.
Battery life is where this optic shines: the ROMEO4S runs for over 100,000 hours using a combination of solar and battery power, so you're not constantly swapping cells or worrying about dead glass when you need it. The graphite finish is subdued and professional, and the optic ships with see-through lens covers and a quick-release mount—everything you need to get running fast.
Whether you're training at the range, running a tactical course, or keeping your duty or carry gun sharp, the ROMEO4S delivers the speed of a red dot in a form factor that works across a wide spectrum of firearms and shooting styles. The 0.5 MOA adjustment increments give you the precision to dial in a true zero without fussing with oversized knobs.
| Magnification | 1x |
| Objective Lens | 20mm |
| Reticle Type | 1 MOA Dot with Ballistic CirclePlex (Red) |
| Adjustment Increment | 0.5 MOA |
| Housing Material | CNC Aluminum |
| Finish | Graphite |
| Battery Runtime | 100,000+ hours (solar and battery combined) |
| Included Accessories | See-through lens covers, quick-release mount |
The ROMEO4S is designed for modern semi-automatic pistols, MSR platforms, and shotguns. Use your specific firearm's mounting interface to confirm fit with the included or optional quick-release mount.
The ROMEO4S delivers over 100,000 hours of runtime using a combination of solar charging and battery power, meaning you'll get extended use between battery changes under normal conditions.
The optic comes standard with see-through lens covers for protection in the field and a quick-release mount for fast installation and removal.
Yes. The 1x magnification, compact form factor, and fast-acquisition Ballistic CirclePlex reticle make the ROMEO4S well-suited for short and medium-range engagements where target speed matters.