Theta Optics Red Dot 1x30 Reflex Sight for 20mm RIS / RAS

Theta Optics
Code: THO-10-007855-00
  • Very clear red dot
  • 1x magnification
  • For 20mm Rails

An Airsoft Sight created by THETA OPTICS which features a red-dot system where a small red dot is projected into the vision of the user while they are looking down the sight. Red dot sights are designed to allow you to aim quicker as once the red dot is zeroed it will always bee on point whatever angle you are looking at the sight through, and also allows you to shoot with both eyes open for a better field of view.

This sight is perfect for those skirmishers who are getting into Airsoft and are looking for a sight which has a great clear sight picture at a low price. The sights' dot is very clear, and is extremely well priced for the quality.

Full description


The sight is constructed entirely from alloy, with polymer flip down travel covers which are used during transport to prevent dust and gunk sticking to the lenses. 


  • 1x Magnification
  • Red Dot Airsoft Sight
  • Allows you to Aim faster
  • Perfect beginner Airsoft Sight
  • Clear red dot
  • Attaches to 20mm RIS / RAS Rails
  • Powered by 1x CR2032 Battery
  • Red tinted front lens
  • Tool-less installation
  • Adjustable windage / elevation
  • 11 Brightness Levels
  • Flip-up travel lens protectors

Package Includes

  • Red Dot 1x30 Reflex Sight for 20mm RIS / RAS
  • Instruction Manual
  • Lens cleaning cloth

Special Instructions

We suggest using the higher brightness settings for outdoors, and the low settings 3-5 for indoor settings to prevent the dot from overpowering your view.

When shooting keep both your eyes open to allow the picture to parallax, allowing you to shoot without directly looking down the sight.

To protect your front lens when playing you can always keep both your eyes open the close the front lens cover. The lens cover will take the hit protecting the sight, otherwise we recommend you always use at least a transparent Airsoft lens protector



Parts & Accessories Type
Sights and Scopes
Sight Type Icon
Sight Type
Red Dot Sight
Package Includes
Instruction Manual, Cleaning Cloth,

Weight and Dimension

Product Height
Approx. 6.5cm
Product Length
Approx. 11.3cm
Product Width
Approx. 5.5cm
Weight KG Icon
Weight (KG)
Approx. 0.217kg


Colour Wheel Greyscale
Item Colour
Construction Icon
Full alloy construction with polymer lens caps

Sight Specific

Sight Magnification
Sight Adjustment Adjustments
Windage, Elevation,
Sight Zero Adjuster Method
Flat-Head Screwdriver
Sight Zero Location
Top, Left,
Sight Mount Options
20mm RIS / RAS Rail
Sight Objective Lens Diameter
Reticle Type
Target Dot

Telescopic Specific

Scope Eye Piece Size

Holographic Specific

Holographic Control Location

Illuminated Sight Specific

Illuminated Reticle
Illuminated Reticle Levels
Illuminated Reticle Colours
Battery Type

Customer reviews

5 / 5
2 reviews for Theta Optics Red Dot 1x30 Reflex Sight for 20mm RIS / RAS
Trustpilot customer reviews
Phillip Roberts
Written on 22/12/2022
Easy to set up and use. Perfect.
Rated 5 out of 5
Stanislav Drozdov
Written on 23/10/2022
good thx
Rated 5 out of 5