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Model 517™

3 Reviews  |  Write a Review
Available Models
Available Colors
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$509.00 Manufacturer Suggested Retail Price
Product Registration


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. 

Product Details

Night Vision-Compatibility:

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

11.9 oz (372 g)

Water Resistant:
Submersible to 10 ft (3 m) depth

MIL-STD-1913 rail

Power Source:

Two 1.5 V AA batteries
Supports lithium, alkaline, or rechargeable

Battery Life:
Lithium: 1,000 continuous hours at nominal setting 12 at room temp.
Alkaline: 600 continuous hours at nominal setting 12 at room temp.

L-3 EOTech reserves the right to change the product specifications at any time without notice.
Controlled under International Traffic in Arms Regulations (ITAR); may not be exported without proper authorization by the U.S. Department of State.


3 Reviews  |  Write a Review
517 Sight Frank Anderson  |  August 10, 2014
I borrowed a friends 517 to see if it made my Bushmaster M17S more usable (iron sights so low on receiver that I just about had to break my cheek bone to fire it). I mounted the 517 on the rail and found that the image fell right into my line of sight (no more painful cheek pressure on receiver). Zeroed within 20 rounds as I didn't have manual and the sight had been used by my friend (was no longer on factory zero). Loved the sight, am going to buy an EXPS3-4 and G33 magnifier!!! You made my M17S totally usable. Thanks
Great for lower 1/3 co-witness Fred Johnson  |  July 06, 2014
The 7mm higher EOTech 517 works great mounted on a flat top AR with fixed front and rear iron sights. The view through the 517 over the sights is perfect, and the fixed sights are perfectly usable (if needed) with just a slight dip of your head. I appreciate the extra light that comes through the non-tinted window of an EOTech as opposed to tube type red dots. The wide range of reticle brightness makes EOTech holographic sights a superior low light or bright light sighting system. I have no regrets in purchasing my 517.
My first eotech and I have to say is wow! Kwoods  |  April 11, 2014
I was very interested in a holographic sight for my ar. At first when I researched the sights I thought these EOTechs were pricey. I sat on the fence for a while about purchasing one. After I did, all I can say is wow, how awesome. It works great in all kinds of lighting situations. I wish the multiplier was cheaper because I couldn't afford a combo yet but will get a G33 multiplier for my 517 in the future. This thing will take a beating and stay zeroed in. If you're interested in one, I would definitely buy one. You won't regret it. Thanks EOTech!
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