1. Introdución
The Vortex Defender-ST Enclosed Solar Micro Red Dot Sight is designed for rapid target acquisition and reliable performance in various conditions. Its fully enclosed design protects the emitter from environmental elements, ensuring durability and consistent operation. This manual provides essential information for the proper setup, operation, and maintenance of your Defender-ST red dot sight.
2. Produto rematadoview
2.1 Características principais
- Deseño pechado: Protects the emitter from dust, rain, and impact.
- Aspherical Lens: Ofrece un gran viewing window for fast target acquisition and a wide field of view.
- Fast-Rack Textured Front: Enhances grip for racking the slide off any surface.
- Multi-Reticle Options: Offers 3 reticle choices (3 MOA dot, 32 MOA circle, and 3 MOA dot with 32 MOA circle).
- Configuración de brillo: 12 levels, including 10 for daylight and 2 for night-vision compatibility.
- Solar Auto D-TEC Technology: Extends battery life by automatically drawing power from solar or battery sources based on light conditions.
- Activado por movemento: Features a 10-minute auto-shutoff to conserve battery.
- Batería de carga lateral: Allows for easy battery replacement without removing the sight.
- Construción duradeira: Made from 7075 aluminum housing, waterproof, fogproof, and shockproof.
2.2 Compoñentes
The Vortex Defender-ST includes the following components:
- Vortex Defender-ST Enclosed Solar Micro Red Dot Sight
- Monte Picatinny
- Ferramenta personalizada
- Tapa de goma
- Conxuntos de parafusos de montaxe máis comúns
- Batería CR2032
- Pano de lente
- Glock MOS Plate
- Extended Torx T-10 Bit

Figure 1: Labeled components of the Vortex Defender-ST Red Dot Sight.

Figure 2: Contents included in the Vortex Defender-ST packaging.
3. Configuración
3.1 Instalación da batería
- Locate the battery cap on the right side of the sight.
- Use the provided custom tool or a suitable coin to unscrew the battery cap counter-clockwise.
- Insira a pila CR2032 co lado positivo (+) cara arriba.
- Replace the battery cap and tighten it clockwise until snug. Do not overtighten.
3.2 Montaxe da mira
The Defender-ST is compatible with a DeltaPoint Pro footprint. Use the appropriate mounting screws and plate for your firearm.
- Ensure your firearm is unloaded and safe.
- Select the correct mounting plate (e.g., Picatinny Mount, Glock MOS Plate) and screw set for your firearm.
- Attach the chosen mounting plate to your firearm according to the firearm manufacturer's instructions.
- Place the Defender-ST sight onto the installed mounting plate.
- Secure the sight to the plate using the appropriate screws from the provided screw sets. Apply thread locker if recommended by your firearm or mount manufacturer. Tighten screws to the recommended torque specifications.
4. Instrucións de funcionamento
4.1 Encendido/apagado
- Para acender: Press either the '+' or '-' button.
- Para apagar: Prema e manteña premido o botón '-' durante 3 segundos.
4.2 Axuste de brillo
The Defender-ST has 12 brightness settings (10 daylight, 2 night-vision).
- Press the '+' button to increase brightness.
- Press the '-' button to decrease brightness.
4.3 Reticle Selection
The sight offers three reticle options: 3 MOA dot, 32 MOA circle, and 3 MOA dot with 32 MOA circle.
- To cycle through reticle options, press and hold both the '+' and '-' buttons simultaneously for 3 seconds.

Figure 3: Available reticle patterns for the Defender-ST.
4.4 Zeroing (Windage and Elevation)
Adjustments for windage and elevation are located on the side and top of the sight, respectively. Each click typically represents 1 MOA (Minute of Angle).
- Axuste de elevación: Use the custom tool or a flathead screwdriver to turn the elevation turret (marked 'U' for Up) on top of the sight. Turning clockwise moves the point of impact down; counter-clockwise moves it up.
- Axuste do vento: Use the custom tool or a flathead screwdriver to turn the windage turret (marked 'R' for Right) on the right side of the sight. Turning clockwise moves the point of impact left; counter-clockwise moves it right.

Figure 4: Windage adjustment location on the Defender-ST.
5. Mantemento
5.1 Limpeza
Keep the lenses clean for optimal performance. Use the provided lens cloth or a soft, lint-free cloth.
- Gently brush away any loose dirt or debris from the lenses.
- Apply a small amount of lens cleaning solution to the cloth, not directly to the lens.
- Limpa as lentes con movementos circulares, comezando polo centro e movéndose cara a fóra.
- Limpar a carcasa cun suave, damp pano segundo sexa necesario.
5.2 Substitución da batería
Refer to section 3.1 for detailed battery installation instructions. Replace the CR2032 battery when the reticle dims or fails to illuminate.
6 Solución de problemas
- Retícula sen iluminación: Check if the battery is correctly installed and has sufficient charge. Ensure the plastic separator tab has been removed.
- Reticle Appears Distorted/Fuzzy: This can sometimes be due to astigmatism. Try adjusting the brightness settings. If the issue persists, consult an eye care professional.
- Loss of Zero: Ensure all mounting screws are tightened to the manufacturer's recommended torque specifications. Check for any loose components on the firearm or mount.
7. Especificacións
| Característica | Especificación |
|---|---|
| Nome do modelo | Defender-ST Enclosed Solar Micro Red Dot Sight |
| SKU | DFST-MRD3-E |
| Tipo de retícula | Multi-Reticle (3 MOA Dot / 32 MOA Circle) |
| Cor da retícula | Vermello Brillante |
| Configuración de brillo | 12 (10 Daylight, 2 Night-Vision) |
| Tipo de batería | CR2032 |
| Alivio dos ollos | Ilimitado |
| Ampliación | 1x |
| Lonxitude | 1.8 polgadas |
| Anchura | 1.3 polgadas |
| Altura | 1.2 polgadas |
| Peso do elemento | 1.6 onzas |
| Material | 7075 Aluminio |
| Dispositivos compatibles | Firearms with Picatinny Rail (DeltaPoint Pro footprint) |
| Tipo de montaxe | Picatinny Mount (included) |
8. Garantía e soporte
8.1 VIP Warranty
The Vortex Defender-ST is backed by the Vortex Unlimited, Unconditional, Lifetime, VIP Warranty. This is a fully transferable promise to repair or replace your item if it becomes damaged or defective. This warranty does not cover loss, theft, deliberate damage, or cosmetic damage that does not hinder the product's performance.
For warranty service or support, please visit the official Vortex Optics websitio web ou póñase en contacto directamente co servizo de atención ao cliente.
Para máis información, visite: Vortex Optics Official Websitio





