Description
Features – Key Benefits Bullets
- DUAL RETICLE SYSTEM lets you switch between a 2 MOA dot and a 65 MOA circle for versatile aiming options.
- LONG BATTERY LIFE with up to 50,000 hours of use ensures reliable performance without frequent battery changes.
- SHAKE AWAKE TECHNOLOGY activates the sight automatically when moved, saving battery life and enhancing readiness.
- WATERPROOF AND FOGPROOF construction allows for reliable use in various weather conditions without performance loss.
- LIGHTWEIGHT DESIGN at just 3 ounces ensures easy handling and minimal impact on firearm weight.
- UNLIMITED EYE RELIEF allows for comfortable aiming from any position, making it suitable for quick target acquisition.
- MANUAL AND AUTOMATIC BRIGHTNESS CONTROL adapts to varying light conditions for clear visibility at all times.
- COMPACT SIZE makes it easy to mount on a variety of firearms, enhancing versatility for different shooting scenarios.
Technical Specifications
| Specification | Details |
|---|---|
| Battery Type | Solar / CR2032 |
| Battery Life | 50,000 Hours |
| Eye Relief | Unlimited |
| Illuminated Reticle | Yes |
| Weight | 3.0 oz. |
| Length | 2.60 in |
| Magnification Type | 1X |
| Objective Lens Size | 20mm |
| Turret Click Value | 0.5 MOA |
| Weather Resistance | Waterproof & Fogproof |
What's in the Box?
- Holosun HS503CU Red Dot Sight
- Lens cover
- CR2032 battery
- User manual
Customer Reviews
"This sight is perfect for my needs. Lightweight and easy to adjust, it has improved my shooting accuracy." - Alex R.
"The battery life is impressive, and the dual reticle feature is a game-changer for quick target acquisition." - Jamie T.
FAQ
1. How does the battery life of the HS503CU compare to other red dot sights?
The HS503CU offers an exceptional battery life of up to 50,000 hours, significantly longer than many competitors. This reduces the frequency of battery changes, ensuring the sight remains operational when you need it most.
2. Is the HS503CU suitable for low light conditions?
Yes, the HS503CU features an illuminated reticle and adjustable brightness settings, making it effective in low light environments. The automatic brightness adjustment helps maintain a clear view regardless of the lighting conditions.
3. Can this sight withstand harsh weather?
The waterproof and fogproof construction of the HS503CU ensures reliable performance even in challenging weather conditions. This durability makes it ideal for outdoor use, whether in rain, snow, or humidity.
4. How does the HS503CU perform in competitive shooting?
With its quick target acquisition capabilities and lightweight design, the HS503CU is well-suited for competitive shooting. The dual reticle system allows for versatile aiming options, enhancing performance during competitions.
5. What firearms is the HS503CU compatible with?
This sight is designed to fit standard Picatinny rails, making it compatible with a wide range of rifles and carbines. Its compact size adds versatility, allowing for use on various firearm setups.
Similar Models
Explore additional options in the Holosun lineup for enhanced shooting experiences. Consider models like the Holosun HS510C for a larger viewing window or the Holosun HS503GU for a green dot variant. Discover our complete collection to find the perfect optics for your needs.Our Guarantees
FREE Fast Shipping Over $99
Enjoy complimentary expedited shipping on all orders over $99.
Secure Payments
Shop with confidence using our encrypted payment processing.
High Quality or Money Back
Not satisfied with your purchase? We'll refund your money, no questions asked.
Top-Notch Support
Our expert team is available to answer all your questions and provide assistance.
What Our Customers Say
Optics Knowledge Center
Understanding Rifle Scope Basics
Magnification
Magnification refers to how much larger an object appears through the scope compared to the naked eye. Fixed power scopes have one magnification setting, while variable power scopes offer a range (e.g., 3-9x).
Objective Lens
The objective lens is the front lens that gathers light. Larger objective lenses (measured in mm) gather more light, providing brighter images in low-light conditions but add weight and require higher mounting.
Reticle
The reticle (crosshair) is the aiming point inside the scope. Modern scopes offer various reticle designs, from simple duplex crosshairs to complex ballistic reticles with holdover points for different distances.
Adjustments
Rifle scopes have turrets for windage (horizontal) and elevation (vertical) adjustments. These are measured in MOA (minutes of angle) or MRAD (milliradians) and allow precise aiming adjustments.
Proper Scope Mounting Guide
Select the Right Rings & Base
Choose rings that match your scope's tube diameter (typically 1", 30mm, or 34mm). Select a base compatible with your rifle's receiver. For heavy-recoiling rifles, opt for stronger mounts.
Install the Base
Clean the receiver and base thoroughly. Apply a small amount of blue Loctite to the screws. Attach the base to the receiver and torque the screws to manufacturer specifications.
Attach the Rings
Attach the bottom halves of the rings to the base. Place the scope in the rings and loosely attach the top halves. Don't fully tighten yet.
Set Eye Relief & Level
Position the scope for proper eye relief (3-4 inches) in your normal shooting position. Ensure the reticle is level using a scope leveling tool. Once positioned correctly, tighten the rings evenly in a cross-pattern.
Scope Zeroing Tips
Start Close
Begin zeroing at a shorter distance (25-50 yards) to ensure you're on paper before moving to your desired zero distance (typically 100 yards).
Use a Stable Rest
Always zero your rifle from a stable shooting position using a bench rest, sandbags, or a shooting rest to eliminate as much human error as possible.
Fire Groups
Fire 3-shot groups before making adjustments. This provides a more accurate representation of where your rifle is shooting than single shots.
Make Deliberate Adjustments
Know your scope's adjustment values (typically 1/4 MOA per click). If your group is 2 inches low at 100 yards, you'll need to adjust up 8 clicks (for a 1/4 MOA scope).
Confirm Your Zero
After making adjustments, fire another group to confirm your zero. Repeat the process until your point of impact matches your point of aim.
Document Your Settings
Once zeroed, record your settings including distance, ammunition used, and environmental conditions for future reference.
Optics Maintenance & Care
Cleaning Lenses
- Start by blowing or brushing away loose particles
- Use a lens pen or microfiber cloth for fingerprints
- For stubborn dirt, use lens cleaning solution (never household cleaners)
- Clean with gentle circular motions from center outward
Protecting Your Optics
- Always use lens caps when not in use
- Store in a dry place with silica gel packets
- Avoid extreme temperature changes
- Use a quality scope cover in harsh conditions
Regular Maintenance
- Check and tighten mount screws periodically
- Inspect O-rings and seals for damage
- Verify zero after rough handling
- Clean the exterior with a damp cloth
What to Avoid
- Never use fingers to touch lenses
- Avoid paper products (tissues, paper towels) on lenses
- Don't use acetone, alcohol, or household cleaners
- Never disassemble your scope (voids warranty)