Sig Sauer ROMEO3 PRO Red Dot Optic — 3 MOA

1x31mm · 3 MOA · SIG PRO Footprint · MOTAC · MAGNETAC · 15 Brightness Settings · 20,000-Hour Runtime The Sig Sauer ROMEO3 PRO is a competition-ready pistol reflex sight with SIG PRO mounting footprint for direct mounting on SIG SAUER full-size optics-ready pistols. 3 MOA crisp red dot reticle. 31mm aspherical glass lens with red notch reflector coating. 13 daylight and 2 night vision compatible brightness settings (15 total). MOTAC powers up on motion and powers down when stationary. MAGNETAC turns optic off when included rubber sight cover is attached. Side-mounted CR1632 battery tray—no need to remove optic for replacement. 20,000-hour runtime at medium brightness. Ultra-low deck height. Co-witnesses with suppressor-height backup iron sights. IPX-7 waterproof. Fogproof. CNC aircraft-grade aluminum housing. 100 MOA total elevation and windage travel. 1.31" height. 1.83" length. 1.35" width. Rubber sight cover included. Backed by SIG SAUER Infinite Guarantee.

3 MOA Red Dot Reticle

3 MOA crisp red dot reticle provides precise aiming point for accuracy at distance. The smaller 3 MOA dot suits shooters prioritizing precision over the faster acquisition of the 8 MOA variant.

SIG PRO Footprint

SIG PRO mounting footprint provides direct mounting compatibility across all modern SIG SAUER full-size optics-ready pistols. Ultra-low deck height optimizes height over bore axis.

31mm Aspherical Lens

31mm aspherical glass lens with red notch reflector coating provides generous sight window with excellent light transmittance, reticle brightness, and zero distortion.

15 Brightness Settings

13 daylight and 2 night vision compatible brightness settings allow fine-tuning for any environment.

MOTAC

Motion Activated Illumination System powers up when motion is detected and powers down when stationary. Conserves battery life during periods of inactivity.

MAGNETAC

Magnetic Activation turns the optic off when the included rubber sight cover is attached. Preserves battery life between match stages or during storage and transport.

Side-Load Battery / 20,000-Hour Runtime

Side-mounted CR1632 battery tray allows replacement without removing optic from pistol. 20,000-hour runtime at medium brightness.

100 MOA Adjustment Range

100 MOA total elevation and 100 MOA total windage travel. Top mount configuration.

IPX-7 Waterproof

IPX-7 waterproof rated for complete water immersion up to 1 meter. Fogproof construction.

Co-Witness Capability

Low-profile CNC aluminum housing co-witnesses with suppressor-height backup iron sights.

SIG Infinite Guarantee

Backed by SIG SAUER Electro-Optics Infinite Guarantee—lifetime, fully transferable warranty. The Sig Sauer ROMEO3 PRO 3 MOA delivers competition-ready precision pistol optic performance—31mm aspherical lens with MOTAC, MAGNETAC, and SIG PRO footprint.

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Specifications:

• Manufacturer: Sig Sauer
• Model: ROMEO3 PRO
• Reticle: 3 MOA Red Dot
• Magnification: 1x
• Objective Lens: 31mm (Aspherical)
• Lens Coating: Red Notch Reflector
• Brightness Settings: 15 (13 Daylight, 2 NV Compatible)
• Motion Activation: MOTAC
• Magnetic Activation: MAGNETAC (Rubber Sight Cover)
• Battery: CR1632 (Side-Mounted Tray)
• Battery Runtime: 20,000 hours (at Medium Brightness)
• Waterproof: IPX-7 (Complete Immersion to 1 Meter)
• Fogproof: Yes
• Mounting Footprint: SIG PRO
• Mount Type: Top Mount
• Total Elevation Travel: 100 MOA
• Total Windage Travel: 100 MOA
• Co-Witness: Yes (Suppressor-Height Iron Sights)
• Housing: CNC Aircraft-Grade Aluminum
• Height: 1.31 inches
• Overall Length: 1.83 inches
• Overall Width: 1.35 inches
• Deck Height: Ultra-Low
• Included: Rubber Sight Cover
• Warranty: SIG SAUER Infinite Guarantee (Lifetime, Fully Transferable)