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£84.99
  • Fully Adjustable
  • 1.5-5x variable magnification
  • Includes cantilever scope mount for 20mm rail

If you are after a mid sized rifle scope for your DMR or Snipers rifle, take a look at the 1.5-5X40 BE 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 1.5-5X40 BE Scope is perfectly suited to both short and long range precision.

£7.99
  • Fits 20mm Rails
  • For 30mm Optics
  • High Profile Rings

A set of two High Profile Scope Rings for 30mm Optics, that will easily connect to 20mm RIS/RAS Picatinny Rail Systems. They have a two-piece design which makes installation very easy, and comes included an Alley Key to aid installation. They are High Profile Rings which will hold the Scope higher than standard, making it easier to aim whilst wearing Lower Face Protection.

£7.99
  • For 30mm Optics
  • Set of Scope Rings
  • Low Profile Mounting

A set of Alloy constructed Scope Rings for 30mm Optics, that has a 20mm Mount on each ring for easy installation to a 20mm RIS/RAS/Picatinny Rail System. They are Low Profile Rings, which will hold your Optic low against your rail rather than reaching for the sky.

£7.99
  • Protects ACOG
  • 35mm Diameter
  • Honeycomb Mesh

A 35mm Mesh Kill Flash designed for use on Airsoft ACOG Style Scopes & Optics.

£34.99
  • Mirrored Lens
  • Variable Brightness
  • Integrated 20mm Mount

A compact Red Dot Sight for Airsoft Guns with a 20mm RIS/RAS Rail System, that has a Mirrored Silver Lens and offers Variable Dot Brightness and Colour, to improve your target acquisition and time-to-target.

£39.99
  • Low Profile Sight
  • 4x Sight Picture Mode
  • Adjustable Brightness

A lightweight and low profile holographic sight which can be adjusted, allowing for four different sight pictures, as well as red and green modes. The sight is constructed entirely from alloy, with a glass Lens and comes with a 20mm RIS / RAS mount.

£39.99
  • Low Profile Sight
  • 4x Sight Picture Mode
  • Adjustable Brightness

A lightweight and low profile holographic sight which can be adjusted, allowing for four different sight pictures, as well as red and green modes. The sight is constructed entirely from alloy, with a glass Lens and comes with a 20mm RIS / RAS mount.

£39.99
  • Alloy construction
  • Integrated 20mm rail mount
  • Red/green illumination - 4 reticle types

Those looking for an affordable reflex sight which combines the strength of military style designs with the functionality of the more common open reflex sight, check this out! The Theta Optics Open II is an upgraded version of existing open reflex sights with a redesigned alloy housing to provide greater protection in the even the sight is dropped or bumped during a skirmish. 

The usual functions of the open reflex sight are still present, with red or green illumination and several brightness levels to choose from, and selectable reticles via the dial at the rear of the sight. This sight also comes with a 20mm Picatinny rail mount built in, meaning an easy and secure fit on any Airsoft gun with a 20mm Picatinny rail!

£39.99
  • Batteries Included
  • Red/Green Reticule
  • Rubber Push Buttons

This Red Dot Sight is an instantly recognisable shape that looks great on any Airsoft Gun, and will give you the ability to quickly and efficiently acquire a target and send some well-aimed shots.

£39.99
  • Batteries Included
  • Red/Green Reticule
  • Rubber Push Buttons

This Red Dot Sight is an instantly recognisable shape that looks great on any Airsoft Gun, and will give you the ability to quickly and efficiently acquire a target and send some well-aimed shots.

£44.99
  • 3 x RIS Rails
  • Multiple Reticules
  • Large Sight Picture

This rather large Red Dot Sight from Theta Optics offers a large sight picture for easy target acquisition, multiple choices of reticule, integrated rail mount and 3 x short 20mm RIS sections for the connection of extra accessories.

£44.99
  • Holographic Reflex Sight
  • Red / Green Modes
  • For 20mm Rails

An Airsoft Red Dot / Holographic sight created by THETA OPTICS which is designed to be fit onto 20mm RIS / RAS Rails to make aiming your Airsoft gun easier and quicker giving you an advantage in CQB engagements. The sight projects a sighting picture 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 picture, 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.

£44.99
  • Holographic Reflex Sight
  • Red / Green Modes
  • For 20mm Rails

An Airsoft Red Dot / Holographic sight created by THETA OPTICS which is designed to be fit onto 20mm RIS / RAS Rails to make aiming your Airsoft gun easier and quicker giving you an advantage in CQB engagements. The sight projects a sighting picture 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 picture, 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.

£79.99
  • Fully Adjustable
  • 4x Magnification
  • Tough Rubber Armour

An Airsoft replica of the ELCAN Specter M145C scope, designed to fit on 20mm RIS rails and featuring a tough rubber housing, easy access adjustments, a pair of backup iron sights and a 4x magnification.

About Theta Optics

Theta Optics is one of the main names in affordable Airsoft sights and scopes, with a huge array of quality optics and mounting apparatus available in several styles. These include EO-style sights, T1 sights, RMR-style micro red dot sights, ACOG replicas and sniper scopes with variable zoom. Theta Optics usually include scope mounts and batteries with its scopes and red dots, giving you one less thing to worry about buying!

No matter which Airsoft Gun you use, Theta Optics has something to suit your loadout, given its huge array of different optics. The Theta Optics range is our favourite when it comes to budget red dot sights, offering a level of quality and functionality rarely found for so cheap. Read our Top 5 Budget Red Dot Sights article for more info!

Ranging from red dot reflex sights for CQB skirmishers to illuminated scopes for Snipers and long range, Theta Optics gives you a superior level of choice, all built with quality and Airsoft skirmishing at the forefront.