Installation and Setup
The Holosun 407K X2 is designed for easy installation on both pistols and rifles. For pistols, attach the sight to the mounting plate using the provided Allen wrench. Ensure the red dot aligns with your shooting eye for proper targeting.
For rifles, secure the sight to the Picatinny rail, tightening firmly but avoiding over-torquing. Always follow the manufacturer’s instructions for specific firearm compatibility and mounting hardware requirements.
1.1 Mounting the Holosun 407K on a Pistol
To mount the Holosun 407K on a pistol, start by ensuring the sight is compatible with your firearm’s mounting system. Use the provided Allen wrench to secure the sight to the pistol’s slide or mounting plate. Tighten the screws evenly to avoid misalignment. The sight’s compact design makes it ideal for handguns, ensuring a low profile for concealed carry. Align the red dot with your shooting eye for proper targeting. For Glock models, ensure the mounting plate is compatible with the pistol’s MOS system. Follow the manual for specific torque specifications to avoid damage. Test the setup to ensure stability and reliability.
1.2 Mounting the Holosun 407K on a Rifle
Mounting the Holosun 407K on a rifle involves attaching it to a Picatinny rail. Ensure the rail is clean and free of debris for a secure fit. Use the provided mounting hardware to clamp the sight firmly onto the rail. Tighten the screws evenly to maintain proper alignment. The sight’s durable design withstands recoil, making it suitable for rifle use. Position the optic to align with your shooting eye for optimal accuracy. Double-check the tightness of all screws before use to ensure reliability in the field. This setup enhances target acquisition speed and shooting performance.
Operating Modes
The Holosun 407K features Auto and Manual modes. Auto mode adjusts brightness automatically, while Manual mode allows custom brightness settings and lockout to prevent accidental adjustments.
2.1 Auto Mode: Brightness Adjustment and Default Settings
The Holosun 407K X2 operates in Auto Mode by default, automatically adjusting reticle brightness based on ambient light conditions. This mode ensures optimal visibility without manual intervention. The sight features 12 brightness levels, with settings 1 and 2 compatible with night vision devices, while setting 12 provides maximum brightness for daylight use. Upon activation, the sight defaults to the last brightness setting used, offering convenience and consistency. Auto Mode is ideal for dynamic environments, as it adapts seamlessly to changing light conditions, enhancing targeting efficiency and user experience.
2.2 Manual Mode: Brightness Settings and Lockout
Manual Mode on the Holosun 407K X2 allows users to manually adjust the reticle brightness, with 12 distinct settings available. Levels 1 and 2 are designed for night vision compatibility, while level 12 provides maximum brightness for daylight conditions. To enter Manual Mode, press and hold the “+” button for 3 seconds. Once activated, the sight will not automatically adjust brightness, requiring manual adjustments using the “+” or “-” buttons. Additionally, Lockout Mode can be activated by holding the “+” button for 3 seconds, preventing accidental brightness changes and ensuring consistent performance during operation.
Adjusting the Sight
The Holosun 407K X2 features 12 reticle brightness levels, with settings 1-2 for night vision and 12 for maximum brightness. Adjust using “+” or “-” buttons.
3.1 Brightness Adjustment: 12 Reticle Brightness Levels
The Holosun 407K X2 offers 12 adjustable reticle brightness levels, ensuring optimal visibility in various lighting conditions. Levels 1 and 2 are compatible with night vision devices, while level 12 provides maximum brightness for bright environments. To adjust, press the “+” button to increase brightness or the “-” button to decrease it. The sight defaults to the last brightness setting used, allowing quick access to your preferred level. This feature enhances versatility, making the 407K X2 suitable for both concealed carry and tactical use.
3.2 Windage and Elevation Adjustments
The Holosun 407K X2 allows precise windage and elevation adjustments using a standard Torx wrench. Each adjustment corresponds to 1/2 MOA per click, ensuring accuracy for zeroing in your target. To adjust windage, loosen the mounting screws slightly, then turn the adjustment screw clockwise or counterclockwise as needed. For elevation, follow the same process with the elevation adjustment screw. After making adjustments, tighten the mounting screws firmly to maintain stability. Always test your aim after adjustments to confirm accuracy. Proper alignment ensures optimal performance for both pistol and rifle setups.
Battery Management
The Holosun 407K X2 uses a CR1632 battery, offering up to 50,000 hours of runtime. Replace the battery by removing the cover on the bottom side.
The sight features power-saving technology, automatically turning off after 10 minutes of inactivity. Ensure the battery is installed correctly for optimal performance and longevity.
4.1 Battery Replacement Process
To replace the battery in your Holosun 407K X2, start by ensuring the sight is powered off. Locate the battery compartment on the bottom side of the optic.
Use the provided Allen wrench to remove the screw securing the compartment. Carefully open the cover and remove the old CR1632 battery. Insert the new battery, ensuring the positive side faces up.
Replace the cover and tighten the screw firmly. Turn the sight on to verify proper operation. Proper battery replacement ensures reliable performance and extends the optic’s lifespan.
4.2 Battery Life and Power-saving Features
The Holosun 407K X2 boasts an impressive battery life of up to 50,000 hours on a single CR1632 battery. This extended runtime is enhanced by advanced power-saving features.
The Shake Awake Technology automatically turns the optic off during periods of inactivity, conserving battery life. When motion is detected, the sight instantly activates, recalling the last brightness setting used.
This combination of efficient power management and motion-activated technology ensures the sight remains reliable and ready for use without frequent battery replacements.
Shake Awake Technology
Shake Awake Technology activates the sight with motion, turning it on instantly. This feature extends battery life by automatically shutting off during inactivity.
5.1 Motion Activation and Last Setting Recall
Motion Activation instantly turns on the Holosun 407K X2 when moved, ensuring quick readiness. The Last Setting Recall feature remembers your last brightness setting, providing seamless operation. This combination enhances convenience and efficiency, especially in dynamic situations. The motion sensor is highly sensitive, activating with minimal movement, while the recall function eliminates the need to adjust settings repeatedly. Together, these features optimize performance for both tactical and everyday use, making the optic user-friendly and reliable.
Troubleshooting Common Issues
Common issues include reticle not appearing, dim brightness, or activation problems. Check battery life, ensure motion activation is enabled, and verify brightness settings are appropriate for conditions.
6.1 Resolving Brightness or Reticle Visibility Problems
If the reticle is dim or not visible, check the brightness settings. Use the + or ⎻ buttons to adjust the 12 brightness levels. Ensure the sight is in manual mode for precise control.
If issues persist, verify battery installation and charge level. Clean the lens to remove dirt or smudges. If the reticle still doesn’t appear, reset the sight by turning it off and on again. Contact Holosun customer support if problems remain unresolved.
Maintenance and Care
Regularly clean the lens with a soft cloth and avoid harsh chemicals. Store the sight in a dry place when not in use. Check battery and mounting hardware for optimal performance.
7.1 Cleaning and Storage Recommendations
For optimal performance, clean the Holosun 407K X2 regularly. Use a soft, dry microfiber cloth to wipe the lens, avoiding harsh chemicals or abrasive materials. Store the sight in a protective case or pouch to prevent scratches. Keep it in a cool, dry place, away from direct sunlight or extreme temperatures. Avoid exposing the sight to water or moisture for extended periods. Remove the battery if storing for long durations. Before reuse, inspect the sight and mounting hardware for any damage or wear. Proper maintenance ensures clarity and reliability of the optic.
Warranty and Support
Holosun offers a limited lifetime warranty covering manufacturing defects. For inquiries or repair service, contact Holosun customer support directly via their official website or authorized dealers.
8.1 Holosun Warranty Coverage and Customer Service
Holosun provides a limited lifetime warranty for the HS407K X2, covering defects in materials and workmanship. This warranty is non-transferable and applies to the original purchaser. For any issues, customers can contact Holosun’s customer service team via email or through their official website. Support includes troubleshooting, repair, or replacement of defective units. Additionally, Holosun offers a 5-year battery life guarantee, ensuring reliability and performance. For detailed warranty terms, refer to the user manual or visit the Holosun website.