Theta Optics Micro Reflex Red / Green Dot Sight for 20mm RIS / RAS Rails

Theta Optics
  • Red / Green Dot
  • For 20mm Rails
  • Micro Dot Sight

An Airsoft Red dot sight created by THETA OPTICS which is designed to be fit onto 20mm RIS / RAS Rails to make aiming your rifle or pistol easier and quicker. The sight projects a red dot using a laser on to the front glass lens which once zeroed will be where the pistol will shoot no matter the angle at which you can see the dot, this allows you to acquire targets quicker and more efficiently giving you an edge in an Airsoft game.

This sight is perfect for any Airsoft Skirmisher who is looking for a cheap but extremely effective red dot sight which won't break the bank without a loss in quality of picture.

Full description


The sight is constructed from alloy, and comes provided with a polymer protective cover for travelling. The dot is bright and clear, and can be fully adjusted for windage and elevation. The dot is powered by a single CR2302 battery, which can be commonly purchased from almost any super market or battery store.


  • Adjustable for Windage
  • Adjustable for Elevation
  • Set Screws fine tuning
  • Red and Green colour options
  • Comes with a protective cover
  • Tool-less installation
  • Lightweight Sight
  • Clear sight picture
  • Powered by one CR2032 Battery
  • Branded:
    • 'UP'
    • 'R'
    • 'ON RED'
    • 'ON GREEN'
    • 'SET SCREWS'
    • 'OFF'

Package Includes

  • Sight Travel Cover
  • Lens Cleaning Cloth
  • Allen Keys

Special Instructions

Due to the on-off switch location, the mount base plate cannot be removed for use with RMR style mounts



Parts & Accessories Type
Sights and Scopes
Sight Type Icon
Sight Type
Red Dot Sight
Package Includes
Instruction Manual, Cover, Allen Keys, CR2032 3V Lithium Button Battery,

Weight and Dimension

Product Height
Approx. 3.5cm
Product Length
Approx. 4.5cm
Product Width
Approx. 2.6cm
Weight KG Icon
Weight (KG)
Approx. 0.05kg


Colour Wheel Greyscale
Item Colour
Black, Tan ,
Construction Icon
Alloy body, with a glass lens, and polymer cover

Sight Specific

Sight Magnification
Sight Adjustment Adjustments
Windage, Elevation,
Sight Mount Options
20mm RIS / RAS Rail
Sight Objective Lens Diameter
Reticle Type
Target Dot

Holographic Specific

Holographic Control Location

Illuminated Sight Specific

Illuminated Reticle
Illuminated Reticle Levels
Illuminated Reticle Colours
Red, Green,
Battery Type