Theta Optics Luneta 3-9x40 EG Scope

Theta Optics
Code: THO-10-018350
  • Fully Adjustable
  • 3-9x variable magnification
  • Includes scope rings for 20mm rail

If you are after a large rifle scope for your DMR or Snipers rifle, take a look at the Luneta 3-9x40 EG scope from Theta Optics! Fully adjustable and featuring a crisp Mil-dot reticle which can be illuminated red, green or blue with varying levels of brightness, the Luneta 3-9x40 is perfectly suited to long range precision.

Full description


The Luneta 3-9x40mm rifle scope features adjustable magnification, focus, illumination colour and brightness. What can't you adjust on this scope? Supplied with 25mm Scope mounts for 20mm Picatinny rails and a CR2032 battery, the Luneta 3-9x40 comes with everything you need, bar the gun, to start harassing the enemy at long range.

The objective lens of the scope is 40mm in diameter, allowing plenty of light in and providing a large field of view, ensuring you can see as much as possible around the target you have set your sights on. The tube of the scope is 25mm/1 inch in diameter, granting you loads of flexibility in mounting options, though the scope includes basic scope mount rings so you are ready to go out of the box. The adjustment turrets have threaded protective caps, removing these reveals the adjustment dials, which can be adjusted without tools or using a flat head screwdriver if you don't want to get your hands/scope dirty. The protective caps help the scope retain its zero even if you bump or knock the sight and aid in protecting the scopes delicate internals. The turret on the top of the scope provides elevation adjustment whilst the turret on the right side adjusts the windage. As we reach the "eye-bell" of the scope, we can find the magnification adjustment ring, which can be rotated around the circumference of the scope to select your magnification setting; from 3 all the way out to 9x magnification! The illumination adjustment turret is found on the top of the eye-bell, and allows 3 levels of brightness adjustment and selection between a red, green or blue illuminated reticle. The battery for the illumination function is installed inside this turret, by unthreading the battery cap and inserting a single CR2032 3V button cell (included). At the rear we find the "eye-lens", which is surrounded by the focus adjustment dial. This dial is used to adjust the scope's focus depending on the eye of the shooter and the range of the objective.

The Luneta 3-9x40mm scope also comes supplied with a lens protector, which prevents the eye lens and objective lens from being scratched. These are probably not Airsoft proof, though they may survive a single shot we still recommend a proper Airsoft rated lens protector to avoid damage from incoming fire.


  • Aluminium construction
  • 3-9x magnification
  • Nitrogen filled tube
  • Tool-less adjustment
  • Mil-dot crosshair
  • Focus adjustable
  • Adjustable reticle illumination
  • Red, Green or Blue reticles
  • Includes 1x CR2032 Button cell
  • 40mm objective lens - Wide field of view
  • Includes Scope rings for Picatinny rails

Package Includes

  • Luneta 3-9x40mm Scope
  • Lens Covers
  • 25mm Scope rings for Picatinny rail
  • 1x CR2032 3V button cell
  • Lens cleaning cloth
  • Instruction manual



Parts & Accessories Type
Sights and Scopes
Sight Type Icon
Sight Type
Package Includes
Lens Protectors, 20mm RIS / RAS Scope Rings, Cleaning Cloth, CR2032 3V Lithium Button Battery,

Weight and Dimension

Product Height
Approx. 6cm
Product Length
Approx. 32cm
Product Width
Approx. 6cm
Weight KG Icon
Weight (KG)
Approx. 0.321kg


Colour Wheel Greyscale
Item Colour
Construction Icon

Sight Specific

Sight Magnification
3x, 9x,
Sight Adjustment Adjustments
Windage, Elevation, Magnification, Illumination, Focus,
Sight Zero Adjuster Method
Tool-less Adjustment
Sight Zero Location
Top, Right,
Sight Mount Options
Scope Rings / Scope Mounts
Sight Objective Lens Diameter
Reticle Type
Sight Backup Sight

Telescopic Specific

Scope Eye Piece Size
Sight Mount Rings Included
Scope Tube Diameter
Sight Magnification Adjuster

Illuminated Sight Specific

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