Description
The EOTech 558 Holographic Weapon Sight 558.A65 is a high-performance optic designed for precision and reliability. Offering a unique holographic red dot reticle, this sight provides enhanced target acquisition speed, ensuring that shooters can engage swiftly and accurately in close to medium range encounters. Its compatibility with Gen I/II/III night vision devices makes it exceptionally versatile for all lighting conditions.
Crafted with the demanding shooter in mind, the EOTech 558 features uncompromising build quality. A rugged aluminum alloy housing with a black anodized finish ensures durability, while an O-ring sealed and fog-resistant construction makes the sight waterproof and submersible up to 33 feet. Whether used by law enforcement, military operators, or civilian marksmen, the 558.A65 stands up against the toughest environments.
Ease of use is paramount with its integrated quick-release Picatinny/Weaver rail mount, enabling hassle-free installation and removal without the need for re-zeroing. The user-friendly interface and inset controls eliminate the hindrance of protruding knobs, allowing for an unobstructed view of the target area. When precision and resilience matter, the EOTech 558 is the sight of choice for superior performance.
Features
- RAPID TARGET ACQUISITION: Illuminated holographic red dot reticle for quick and precise aiming.
- NIGHT VISION COMPATIBLE: 10 brightness settings attuned for Gen I/II/III NV devices.
- HIGH VISIBILITY OPTICS: Features a 68 MOA outer ring with a pinpoint 1 MOA aiming dot.
- DURABLE CONSTRUCTION: Aluminum alloy housing, anodized finish, O-ring sealed, and waterproof.
- EXTENSIVE BATTERY LIFE: 1,000 continuous hours on nominal setting with AA batteries.
- MULTI-BRIGHTNESS SETTINGS: 30 levels; 20 for daylight, 10 for night vision compatibility.
- QUICK MOUNTING SYSTEM: Integrated Picatinny/Weaver rail mount for easy attachment.
- USER-FRIENDLY CONTROLS: Inset control buttons prevent obstruction during target acquisition.
Specifications
| Specification | Detail |
|---|---|
| Model | 558.A65 |
| Size | Full |
| Weight | 13.3 oz |
| Magnification Range | 1x |
| Reticle Size | 1 MOA |
| Power Supply | 2 x 1.5 V AA batteries |
| Dimensions | 5.5 x 2.2 x 2.8 inches |
| Battery Life | 1,000 continuous hours at nominal setting 12 at room temperature |
| Battery Type | AA Alkaline Batteries |
| Brightness Settings | 10 NVD, 20 DL |
| Night Vision Compatible | Yes |
| Item Condition | New |
| Finish | Black |
| UPC | 672294600534 |
| MPN | 558.A65 |
| Product Type | Holographic Sight |
What's In The Box?
- EOTech 558.A65 Holographic Weapon Sight
- Quick-Start Guide
- Warranty Card
- 2x AA Alkaline Batteries
- Protective Case
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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)