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SIG SAUER Romeo4S Compact Red-Dot Sight

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User Manual for SIG SAUER Romeo4S Compact Red-Dot Sight with Solar Cell 

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SIG SAUER Romeo4S Compact Red-Dot Sight with Solar Cell  Contents of the user manual for the SIG SAUER Romeo4S Compact Red-Dot Sight
  • Product category: Red Dot/Holographic Sights SIG SAUER
  • Brand: SIG SAUER
  • Description and content of package
  • Technical information and basic settings
  • Frequently asked questions – FAQ
  • Troubleshooting (does not switch on, does not respond, error message, what do I do if...)
  • Authorized service for SIG SAUER Red Dot/Holographic Sights

User manual for the SIG SAUER Romeo4S Compact Red-Dot Sight contain basic instructions that need to be followed during installation and operation. Before starting your appliance, the user manual should be read through carefully. Follow all the safety instructions and warnings, and be guided by the given recommendations. User manual is an integral part of any SIG SAUER product, and if it is sold or transferred, they should be handed over jointly with the product. Following the instructions for use is an essential prerequisite for protecting health and property during use, as well as recognition of liability on the part of the manufacturer for possible defects should you make a warranty claim. Download an official SIG SAUER user manual in which you will find instructions on how to install, use, maintain and service your product.

And do not forget – unsuitable use of a SIG SAUER product will considerably shorten its lifespan!



Product description

Sig Sauer outfitted its battle-ready Romeo4S Compact Red-Dot Sight with superior quality optics, high-transmission clear notch filter coating, and a red-dot illuminated reticle. The reticle offers a 2 MOA brilliant red dot within a wider circle with multiple illumination settings for daytime target acquisitions and two low-light settings for night vision devices. The red dot and the circle can be turned on separately, together, or with holdover dots. The illumination circuit also features a Motion-Activated Illumination function (MOTAC) that powers up brightness when it senses motion, and powers the brightness down when at rest. It also helps to extend the battery life to 50,000 hours in normal use. The optical properties also allow for an unlimited eye relief. To extend the battery life even more and to allow a battery-free operation, this sight also features a top-mounted solar cell.

To endure the toughest battlefield conditions, the housing is CNC-machined from a single piece of aluminum. It also provides a waterproof and fogproof performance. The windage and elevation knobs are knurled for a slip-free operation and offer 100 MOA adjustment ranges with 1/2 MOA increments. The sight offers two Picatinny mounting options: a standard Torx Picatinny mount and an absolute co-witness Picatinny QR riser mount.
    Optical Performance
    • 1x magnification
    • 20mm objective lens diameter
    • Clear notch filter coating
    • Unlimited eye relief
      2 MOA Ballistic Circle Dot Reticle
      • 2 MOA dot
      • Three hold dots
      • Wide circle
      • Can be turned on separately or together
      • LED illumination:
        • 10 day settings
        • 2 night vision settings
      • Parallax-free aiming
        Use and Handling
        • 1/2 MOA impact point correction
        • 100 MOA windage and elevation
        • Rubberized brightness adjustment pad
        • Built-in solar cell:
          • Allows battery-free operation
          • Extends battery life
          Construction
          • Aluminum housing
            • CNC-machined from a single piece
            • Ultra-lightweight and durable
          • Picatinny rail mounts:
            • Absolute co-witness 1.41" Picatinny torx riser and quick release mounts
          • Knurled turrets, knobs, and adjusters
          • Waterproof, rated IPX7
          • Rubberized eyecup
          • Impact-resistant
          UPC: 798681567867 In the Box SIG SAUER Romeo4S Compact Red-Dot Sight with Solar Cell (Dot-Circle Illuminated Reticle, Graphite)
        • CR-2032 Battery
        • 2 x Thread-In Flip-Up Lens Covers
        • Absolute Co-Witness 1.41" Picatinny Torx Riser
        • QR Mount
        • Side Mounted Battery Tray
        • Battery & Mount Tools
        • Limited 5-Year Warranty on Electronics
        • Limited Lifetime Warranty
        Table of Contents




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Technical parameters

SIG SAUER ROMEO4S Specs

Reticle 2 MOA Ballistic Circle Dot reticle
Magnification 1x
Objective Lens Diameter 20mm
Impact Point Correction 1/2 MOA
Windage/Elevation Adjustment 100 MOA
Weatherproofing IPX7-rated, waterproof and submersible
Power 1 x CR-2032 battery
1 x solar cell
Dimensions 3.3 x 2.5 x 1.9" / 84.6 x 62.6 x 47.2 mm
Weight 3.4 oz / 96.4 g
Package Weight 1.45 lb
Box Dimensions (LxWxH) 7.9 x 5.2 x 3.6"

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