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The Model 517 holographic weapon sight was designed with functionality and affordability in mind. Buttons on the left side (instead of the back) provide instant access for the easiest possible operation, allowing a magnifier or back-up iron sight to fit closely to the HWS body.  The front base of the 517 is raised to hover over the standard hand guards of many AR-15 weapons.  


The Model 517 operates on easy-to-find AA batteries. 


Don't forget, using lithium AA batteries almost doubles the run-time of traditional alkaline. 





  • Night Vision-Compatibility:

  • None

  • Length/Width/Height:

  • 5.6” x 2.4” x 2.8” (143 x 60.9 x 71 mm)

  • Weight:

  • 11.9 oz (372 g)

  • Waterproof:

  • Submersible to 10 ft (3 m) depth

  • Mount:

  • MIL-STD-1913 rail





  • Return to Zero: 

  • Repeatable to within 1 MOA after re-mounting

  • Power Source: Two 1.5 V AA batteries

  • Supports lithium, alkaline, or rechargeable

  • Battery Life: Lithium: 1,000 continuous hours at nominal setting 12

  • Alkaline: 600 continuous hours



•  EOTech reserves the right to change the product specifications at any time.


•  All EOTech material is for information purposes only and does not constitute any binding obligation or agreement by EOTech; and all claims about performance and performance characteristics assume normal, responsible usage within the warranty period.


•  EOTech users will often experience a point of impact shift away from the point of aim when the sight is used at a temperature different from the temperature at which the sight was zeroed. The point of aim shift may be greater the more extreme the temperature change. To achieve optimum accuracy, the sight should be re-zeroed whenever the temperature changes from the temperature at which the sight was zeroed.


•  All EOTech sights exhibit a varying degree of parallax depending on operating conditions.

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