Vortex Optics Red Dot Sight StrikeFire II Red/Green (Cantilever Mount)







The Vortex Optics StrikeFire II Red/Green is a robust red dot sight that combines speed, reliability and versatility in a single high-quality optic. Thanks to the choice between a red or green 4 MOA dot, a clear 1x image and a robust aluminium housing, this red dot sight is suitable for airsoft, sport shooting and professional training use. The included cantilever mount also ensures a comfortable and straightforward fit on AR platforms and other replicas with a Picatinny rail.
Why choose the StrikeFire II?
A good red dot sight makes all the difference between having to search for your target and being right on target straight away. The StrikeFire II is designed for rapid target acquisition whilst keeping both eyes open. This allows you to maintain an optimal overview during dynamic CQB scenarios, outdoor skirmishes and tactical training exercises.
The choice between a red and a green dot offers extra flexibility. Depending on the lighting conditions or your personal preference, you can simply choose the colour that is easiest to see.
A 4 MOA reticle for speed
The 4 MOA dot has been developed for rapid target acquisition at short and medium ranges. The dot is large enough to be immediately visible during rapid target transitions, without making aiming unnecessarily complicated.
For CQB, woodland airsoft and sport shooting, this calibre strikes an excellent balance between speed and accuracy.
Clear vision in all conditions
The StrikeFire II is fitted with fully multi-coated lenses that maximise light transmission and minimise reflections. This ensures that the image remains clear and high-contrast, even on cloudy days or in densely wooded areas.
The high-quality glass coatings also ensure true-to-life colours and reduce eye strain during prolonged use.
Parallax-free for rapid target acquisition
A key advantage of the StrikeFire II is its parallax-free design. As long as the dot remains visible on the target, the point of impact remains reliable, even when your eye is not perfectly centred behind the optic.
This makes quick shoulder changes, shooting from cover and dynamic movements considerably easier than with traditional aiming devices.
Suitable for a wide range of lighting conditions
The StrikeFire II features 10 brightness settings, including settings suitable for use with night-vision equipment. This ensures that the dot remains clearly visible in virtually all conditions, from bright sunlight to dark indoor locations.
What’s more, with a single press of a button, you can easily switch between a red and green dot.
Robust construction for heavy-duty use
The housing is made from a single piece of aerospace-grade aluminium, making the optical unit highly resistant to shocks, impacts and heavy loads.
In addition, the StrikeFire II is filled with nitrogen and fitted with O-ring seals throughout. As a result, the red dot:
- Waterproof
- Fog-free
- Dust-tight
- Shock-resistant
Even during rainy skirmishes or dusty outdoor conditions, the optics continue to function reliably.
Ready for installation straight away
The StrikeFire II comes with a Cantilever Mount, which is ideal for AR platforms. You’ll also receive a Lower 1/3 Co-Witness mount, allowing you to adjust the mounting height to suit your configuration.
Thanks to the standard Picatinny rail, the red dot sight is easy to mount on a wide range of replica firearms and real firearms.
Long battery life
With the included CR2 battery, the StrikeFire II offers a battery life of up to approximately 5,000 hours, depending on the brightness setting selected.
As a result, you’ll rarely need to replace the battery and can rely on your optic for long periods during training sessions and skirmishes.
Vortex VIP Guarantee
Like all Vortex Optics products, the StrikeFire II also comes with the well-known lifetime Vortex VIP Warranty. Should a fault ever occur, the optic will be repaired or replaced. This warranty underlines the quality and durability for which Vortex is renowned worldwide.
Scope of supply
You’ll receive everything you need to get started straight away:
- Vortex StrikeFire II Red/Green
- Cantilever Mount
- Lower 1/3 Co-Witness Mount
- T15 Torx key
- Flip Cap lens protectors
- CR2 battery
- Lens cloth
- English-language manual
- Full-colour packaging
Key features
- 4 MOA Red/Green Dot for rapid target acquisition.
- Choice between a red and a green dot for optimum visibility.
- 10 brightness levels, including settings compatible with night vision.
- Parallax-free design for more accurate aiming whilst moving.
- Fully multi-coated lenses for maximum clarity and light transmission.
- Water-, mist-, dust- and shock-resistant construction.
- Aircraft-grade aluminium casing for maximum durability.
- Up to 5,000 hours’ battery life on a single CR2 battery.
- Includes Cantilever and Lower 1/3 Co-Witness mount.
- Covered by the lifetime Vortex VIP Guarantee.
Common mistakes
A common mistake is choosing a red dot sight solely on the basis of the size of the dot. A 4 MOA dot is specifically designed for maximum speed at short and medium ranges and is therefore ideal for dynamic applications.
The brightness is also often set unnecessarily high. A dot that is too bright can partially obscure the target. You should therefore always adjust the brightness to suit the ambient conditions to ensure the sharpest sight picture.
Frequently Asked Questions
Is the StrikeFire II suitable for airsoft?
Yes. Thanks to its robust aluminium construction, waterproof housing and rapid target acquisition, this red dot sight is ideal for both CQB and outdoor airsoft.
What is the advantage of having both a red and a green dot?
Depending on the lighting conditions or your personal preference, a red or green dot may be more visible. You can easily switch between the two colours.
Is this red dot suitable for night vision?
Yes. The StrikeFire II has brightness settings that are compatible with night-vision equipment.
Is installation included?
Yes. You’ll receive both a Cantilever Mount and a Lower 1/3 Co-Witness mount, so you can fit the scope straight away.
How long does the battery last?
The CR2 battery supplied offers a running time of up to approximately 5,000 hours, depending on the brightness setting selected.
With the Vortex Optics StrikeFire II Red/Green (Cantilever Mount), you’re choosing a robust, premium red dot sight that combines speed, reliability and versatility. Thanks to the choice of a red or green dot, the clear optics and the legendary Vortex VIP Guarantee, you’re assured of top performance during every training session, competition or skirmish.

Product specifications
- Article number
- SF-RG-501
- Weight
- 550
- Weight unpackaged
- 250gr
- Brand
- Vortex Optics
- Type
- Strike Fire II Red Dot Sight RG Co-Witness
- Color
- Black
- Zoom
- icon-no
- Reticle
- Red / Green dot
- Brightness setting
- icon-yes
- Windage & elevation setting
- icon-yes
- Length
- 142mm
- Lens diameter
- 30mm
- Waterproof
- icon-yes
- Fogproof
- icon-yes
- Shockproof
- icon-yes
- Battery
- 1x CR2 (included)

























