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/  552

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Caution

   Never disassemble the sight’s optical assembly. The optical cavity is purged, 

nitrogen filled, and sealed to achieve fog-resistant performance  Disassembly 

will void the warranty and render the sight inoperable 

   Ensure the HWS is off before using night vision mode  Once the sight is OFF, 

pressing the NV button activates the NV mode for use with an HWS in tandem 

with a night vision device  Brightness settings in NV mode are only detectable 

when using night vision 

    When a sudden increase in resistance is felt in the elevation or windage 

adjustment shafts, the end of the adjustment range has been reached  DO NOT 

TURN THE ADJUSTMENTS ANY FARTHER OR SERIOUS DAMAGE MAY OCCUR 

TO THE SIGHT.

    Always dampen the glass surfaces prior to cleaning. Never clean the glass 

surface with a dry cloth or paper towel 

     All moving parts of the sight are permanently lubricated  Do not try to 

lubricate them.

    Do not use deteriorated or corroded batteries. Inspect batteries for rips, tears, 

dents, or cuts in the battery housing  If there is any exposed internal content of 

the battery, it could affect the operation of the sight 

    The 552 HWS units are designed to mount directly to either a 1" (25 4mm) 

Weaver or MIL-STD-1913 rail specification 

Summary of Contents for 552

Page 1: ...1 552 HWS HOLOGRAPHIC WEAPON SIGHT ...

Page 2: ...THIS PAGE WAS LEFT BLANK INTENTIONALLY ...

Page 3: ...ons 11 3 GET STARTED Operating Instructions 12 Mounting the HWS 13 Battery 14 Battery Recommendations Replacing the Battery Electronic Features 16 Night Vision Mode 17 Windage and Elevation 18 Zeroing Procedures 19 4 MAINTENANCE Cleaning Instructions 20 Operator Level Maintenance 21 Troubleshooting 22 5 NEED SOME HELP Service and Repair 24 Replacement Items 24 Contact Information 25 ...

Page 4: ...clear your weapon please see the operator s manual that accompanied the weapon platform you are mounting the sight on Laser Safety The HWS is a Class I laser product The illuminating beam can become accessible to the eye if the housing is broken Turn the sight off immediately and return the broken unit to the factory for repair FCC Compliance The HWS complies with Part 15 of the FCC Rules Operatio...

Page 5: ...e in resistance is felt in the elevation or windage adjustment shafts the end of the adjustment range has been reached DO NOT TURN THE ADJUSTMENTS ANY FARTHER OR SERIOUS DAMAGE MAY OCCUR TO THE SIGHT Always dampen the glass surfaces prior to cleaning Never clean the glass surface with a dry cloth or paper towel All moving parts of the sight are permanently lubricated Do not try to lubricate them D...

Page 6: ...gagements It allows very fast target acquisition and engagement at short ranges while providing aiming capability out to 300 meters equal to or better than iron sights The major combat advantage of the HWS is extremely rapid reticle on target acquisition As quickly as a target is identified the holographic reticle can be superimposed on the target The sight allows operators to maintain eye contact...

Page 7: ... system and emits no signature from frontal or from a peripheral aspect While in the NV mode the sight is undetectable by opposing force night vision equipment The HWS can be positioned behind night vision systems without any bloom on the target area The primary use of the HWS is for the M4A1 carbine and CQBR in Close Quarters Battle The HWS is not however limited to carbines The HWS can also be u...

Page 8: ...ed with a 308 Cal with 150 Gr M59 FMJ at roughly 2 800 fps with a 24 8 barrel Reticles HWS RETICLE ADVANTAGE EOTECH s Holographic technology provides a distinct advantage over typical red dots EOTECH can offer any type of reticle pattern as opposed to being limited to a single dot EOTECH reticle designs are fabricated so that they can incorporate multiple trajectory points of aim range assist feat...

Page 9: ...0 23mm Front Window Material Glass 1 8 3 17mm thick Rear Window Material Laminate 3 16 4 76mm thick FOV 100 Yds 91m 30 yds 28m at a 3 eye relief Reticle Options 0 68 MOA circle with quadrant ticks with 1 MOA aiming dot XR308 4 ballistic aiming dots designed around 308 caliber round ELECTRICAL Power Source 2 1 5 V AA batteries Supports lithium alkaline or rechargeable Battery Life Lithium 2 500 con...

Page 10: ... 10 552 Anatomy Holographic Window Reticle Elevation Adjustment Windage Adjustment Protective Aluminum Hood Locking Cam Lever Removable Battery Compartment Universal Mount On Off Night Vision and Brightness Buttons ...

Page 11: ...r light ON OFF Night Vision and Brightness Buttons Raised button control interface allows the operator to perform and adjust user settings for appropriate and preferred conditions see page 16 Protective Aluminum Hood Preassembled protective hood increases durability of sight housing and protects the sight from impact damage Universal Mount Integrated base to accommodates all MIL STD 1913 rail tole...

Page 12: ...2 Please read the instructions carefully before mounting and using the sight and always practice proper firearm safety The HWS will include HWS 552 Sight 2 AA Alkaline Batteries 7 64 Allen Key Quick Reference Card Product Registration Warranty Card Hex Cross Bolt PRO TIP Sight shown below mounted to help identify front and back ...

Page 13: ... strongly recommend that the rail be installed by a qualified gunsmith To mount the sight 1 Turn the hex bolt counterclockwise to back the bolt out of the weaver lock Do not back the bolt all of the way out of the lock only enough for the base to sit properly on the rail 2 Turn the hex bolt clockwise drawing the weaver lock into the rail until resistance is felt Using a coin a U S nickel or simila...

Page 14: ... recoil or turns off suddenly replace the battery PRO TIP It is always good practice to replace the battery with a fresh ones before a mission Battery Recommendations We recommend the use of Energizer batteries with the 552 HWS Alkaline AA batteries Alkaline AA batteries from different manufacturers are not all constructed the same way Tests show some brands are more susceptible to degradation by ...

Page 15: ...led or the seal may be compromised To reinstall the battery compartment point the sight towards the ground and slide battery compartment onto base Make sure there is enough clearance between the contact and the batteries to avoid bending the contacts Hold the battery compartment down firmly against the base and close the locking cam Before you push down on cam lever make sure the battery compartme...

Page 16: ... sight off simultaneously press both the UP and DOWN arrows Verify that the sight is ON OFF by looking through the window for the reticle Electronic Features All electronic controls are via push buttons located at the rear of the unit housing FIGURE 3 PRO TIP To ensure proper operation of the pushbutton switches always press firmly on the center of the switch FIGURE 3 ON 4 hr Auto Shut Off Decreas...

Page 17: ...e the reticle image does not bloom ON Night Vision Mode and 8 Hour Auto Shut Down Pressing the NV Button FIGURE 3 will turn the sight ON in Night Vision Mode The sight will turn on at Level 4 and automatically shut off 8 hours after the last pushbutton control is used There are ten 10 NV brightness settings provided to allow the user to adjust the reticle brightness to their preference OFF Turning...

Page 18: ...aim approximately 10 MOA 5 127mm at 50 yards 45 7m or 10 254mm at 100 yards 91m when zeroing To move the point of impact UP turn the elevation adjustment LEFT To move the point of impact RIGHT turn the windage adjustment RIGHT The HWS elevation and windage adjustments are factory collimated with the bore of the rifle parallel to the mounting rail The sight should be close to mechanical zero when m...

Page 19: ... approximately 100 yards away With the target in the center of the barrel make elevation and windage adjustments until the dot of the HWS is also centered on the target The HWS is now bore sighted Move on to range sight in to fine tune your zero Live Fire Range Sight In Using the same ammunition that you plan to shoot or hunt with fire a 3 shot group at your preferred zero distance Keeping the gun...

Page 20: ...d in any camera store Always dampen the glass surfaces prior to cleaning To avoid damaging the window never clean the glass surface with a dry cloth It must be moistened with cleaning fluid glass cleaner or an EOTECH LensPen 2 No maintenance is needed on the sight s surface except to occasionally wipe off with a damp soft cloth Use only a water based cleaner such as glass cleaner ammonia or soap a...

Page 21: ...orated or corroded batteries Inspect battery for rips tears or cuts in the housing If there is any exposed internal content of the battery it could potentially affect the operation of the sight Outer Housing Care See the heading Cleaning Instructions page 20 under section 4 Maintenance The following items are authorized Customer Service parts that can be obtained from EOTECH 2 AA Alkaline Batterie...

Page 22: ...tronics by removing any source of power for approximately two 2 minutes This will allow a capacitor in the electronics housing to drain of power resetting the electronics Reinstall the battery and operate the sight as normal Check the battery contacts for corrosion or wear Clean the contacts Turn in the sight for maintenance FAILURE There is a streak in the reticle the reticle is dim the reticle f...

Page 23: ... nearsightedness you will require them not reading glasses to see the reticle in focus as it is projected onto the target plane If you wear bifocals or have astigmatism you may see a distorted reticle Prior to turning the sight in for repair check with others who have used the sight and compare what you see to ensure it s not your focal acuity Turn the sight in for maintenance FAILURE The reticle ...

Page 24: ...for EOTECH s Service Department to sign indicating the receipt of materials The signed copy will be mailed faxed or emailed back to you upon receipt of the sight s for the purposes of accountability If the manufacturing date is more than five years old a fee will be assessed for repair to include the cost of both parts and labor A purchase order will be required to process the repair Please contac...

Page 25: ...nformation CUSTOMER SERVICE REPAIR 888 EOTHOLO eotechinc com help center RA REQUEST WEB ADDRESS eotechinc com help center SHIPPING ADDRESS EOTECH 46900 Port Street Plymouth MI 48170 USA SCAN FOR PRODUCT REGISTRATION SCAN FOR WARRANTY INFORMATION ...

Page 26: ...Thank you for purchasing an EOTECH HWS N1979 Rev D JANUARY 2022 Proudly Made in Michigan USA EOTECHINC COM ...

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