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Sig Sauer

Sig Sauer Romeo4T Pro

Compact red dot with ballistic circle dot reticle and MOTAC

Quick Specs

Price
$579
Weight
7.6 oz
Brand
Sig Sauer
Category
optic

Features

  • Ballistic circle dot
  • MOTAC motion activation
  • 20,000 hour battery
  • Multiple reticle options
  • Night vision compatible

Capability Boosts

CQB+2
Low Light+2
Night Vision+1
Reliability+1

Compatibility Tags

interface: picatinny-topsuitable-for: ultra-compact

Overview

The Sig Sauer Romeo4T Pro represents Sig's professional-grade tactical red dot, designed to compete directly with premium offerings from Aimpoint while providing features they don't offer. Selected as an issued optic by the FBI and other federal agencies, the Romeo4T Pro delivers exceptional optical clarity, multiple reticle options, and combat-proven durability at a lower price point than European competitors. The "Pro" designation indicates enhanced coatings for improved night vision performance over the standard Romeo4T.

What sets the Romeo4T Pro apart is its Ballistic Circle Dot reticle system, allowing shooters to toggle between a 2 MOA dot, a 2 MOA dot with ballistic holds, a 2 MOA/65 MOA Circle Dot, or all combined—providing flexibility no Aimpoint offers. The holdover points are calibrated for 5.56 NATO and 7.62x51mm NATO, enabling rapid engagement at various distances without manual holdover estimation. Combined with MOTAC motion activation and 50,000 hour battery life, the Romeo4T Pro offers set-and-forget reliability.

Constructed from 7075 aluminum with IPX8 waterproofing (20-meter submersion rated), the Romeo4T Pro handles extreme conditions with confidence. The top-mounted buttons eliminate accidental activation from gear contact, while the Aimpoint Micro footprint ensures compatibility with industry-standard mounts. For professionals requiring night vision compatibility and reticle versatility without Aimpoint pricing, the Romeo4T Pro delivers compelling value.

Key Features

  • Selectable quad reticle system with ballistic holds for 5.56/.308
  • 50,000 hour battery life with MOTAC motion activation
  • Enhanced NVD-compatible lens coatings (Pro designation)
  • Top-mounted buttons prevent accidental activation
  • IPX8 rated for 20-meter submersion
  • Aimpoint Micro T-1/T-2 mount compatibility
  • 7075 aluminum construction for professional durability

Pros

  • +FBI-selected optic validates professional-grade quality
  • +Quad reticle options provide unmatched versatility
  • +Night vision performance rivals Aimpoint at lower cost
  • +Glass clarity as good as or better than competitors
  • +Top buttons eliminate accidental brightness changes

Cons

  • Button location problematic when using certain sling configurations
  • Some reports of circle reticle alignment issues (QC variance)
  • No solar backup unlike some other Sig models
  • Heavy threadlocker makes factory mount removal difficult

Detailed Specifications

Reticle
2 MOA dot / 65 MOA circle (selectable quad system)
Magnification
1x
Battery Type
CR2032
Battery Life
50,000 hours
nightVisionCompatible
Yes (enhanced Pro coatings)
Waterproof Rating
IPX8 (20 meter submersion)
weight
5.6 oz
Length
2.4 inches
Objective Diameter
20mm
Adjustment Type
0.5 MOA per click
Adjustment Range
100+ MOA windage/elevation
operatingTemp
MIL-STD-810G rated
Material
7075 aluminum

Compatible Platforms

+18 more

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