EOTech 517.A65 Holographic Sight
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- Weapon sight developed to optimize EOTech's proprietary Holographic Weapon Sight technology
- Control buttons have been moved from back to left side of unit for instant access; allows for mounting of magnifier or back-up iron sight
- Portion of front base has been raised to allow sight to fit over standard hand guards found on many M-4 or M-16 style weapons
- Parallax-free transmission holography optics; 1X magnification and unlimited eye relief; measures 2.1 by 2.8 by 5.6 inches (W x H x D) with 11.9-ounce weight
- Made in the USA; includes limited two-year manufacturer's warranty
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The 517.A65 has been developed to optimize the functionality of the HWS. The buttons have been moved from the back to the left side for instant access, allowing a magnifier or a back up iron sight to fit closely to the HWS body. This button position allows the user to operate the HWS function switches easier than ever before. Additionally, a portion of the front base has been raised to allow the sight to fit over standard hand guards found on many M-4 or M-16 style weapons.- Buttons on left side to work specifically with magnifiers - AA Battery model (supports Lithium or Alkaline) - Standard A65 image (65 MOA ring/1 MOA dot reticle) - Raised 7mm base
Made in the USA, this weapons sight was developed to optimize EOTech's proprietary Holographic Weapon Sight technology. Control buttons have been moved from the back to the left side of the unit for instant access, while allowing for mounting of a magnifier or back-up iron sight. Additionally, a portion of the front base has been raised to allow the sight to fit over standard hand guards found on many M-4 or M-16 style weapons.
- Parallax-free transmission holography optics
- 1X magnification
- Unlimited eye relief
- Measures 2.1 by 2.8 by 5.6 inches (W x H x D)
- 11.9-ounce weight
- -40 to 150 degrees Fahrenheit operating temperature
- Submersible to 10 feet underwater
- Fog-proof internal optics
- 0.5-inch at 100 yards MOA adjustment
- +/- MOA travel adjustment range
- One-inch Picatinny rail
- Heads-up Display Window
- Anti-glare optical surface coating
- Window measures 1.2 by 0.85 inches (W x H)
- 0.125-inch solid glass front window
- 0.1875-inch, shatter-resistant laminate rear window
- 30-yard field of view at 100 yards at four-inch eye relief
- 146,000:1 brightness adjustment range
- Powered by two 1.5-volt AA batteries
- 1,000 continuous hours of use at nominal setting 12 with lithium batteries; 600 hours with alkaline
- 20 brightness settings, with scrolling feature
- Flashing auto battery check indicator at start-up
EOTech products include a limited two-year manufacturer's warranty against defects in materials and workmanship.
EOTech is a subsidiary of L-3 Communications, the sixth largest defense company in the United States, and a leading defense contractor in ISR (Intelligence, Surveillance, and Reconnaissance), secure communications, government services, training and simulation, and aircraft modernization and maintenance. L-3 Communications is also a leading merchant supplier of guidance and navigation products and systems, sensors, scanners, data links, propulsion systems, avionics, electro optics, satellite communications, encryption products, signal intelligence, antennas, and microwave products.
L-3 EOTech uses advanced laser and holographic technology to enhance optical devices in target acquisition systems, recreational sport optics, and sighted automation environments, and the company invented, designed, and manufactures the Holographic Weapon Sight (HWS), the world's first holographic sighting system for small- and medium-sized weapon platforms. HWS uses patented technology to provide remarkably durable, parallax-free sighting. HWS additionally removes some of the complexities from targeting, and allows the aiming process to become almost instinctive and reflexive.
After winning the "Optic of the Year Award" from the Shooting Industry Academy of Excellence, EOTech later introduced their military and law enforcement HWS in 2001. Since then, HWS has been standardized by US Special Operations Command (SOCOM), FBI, DEA, State Department, US Border Patrol, Immigration & Customs Enforcement (ICE), NYPD, LAPD, Texas State Police, and many international special operations forces.
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This particular one is their new basic AA model. When you look at EOTech sights, they have a number of options you need to think about:
1) Battery type. They make ones that use AA, and CR123. The CR123 sights are smaller, or much smaller depending on the model. However the AA sights take batteries that are very cheap and easy to get. So decide which you wish to have. The 517 is a AA sight.
2) Night vision capability. If you want to use a reflex sight with night vision, it needs to get really dim, below visible levels. Not all EOTechs can do this. You have to pay more for ones that can, and they have a third "NV" button to turn it on. If you don't need night vision, it is a fair bit cheaper to get one that doesn't support it. The 517 does not have NV capability. Don't worry, it still gets plenty dim for use in low light situations without ruining your vision. It just doesn't work with night vision goggles.
3) Button placement. The classic EOTech design has the buttons on the back, facing you. This works but is problematic if you have back up iron sights or a magnifier behind it. New EOTechs have them on the side, so they are always easy to access. The 517 is a new model with side mounted buttons.
4) Reticle type. Unlike normal red dot sights, EOTech sights have a more detailed and complex reticle. The Classic EOTech design is a large circle with a tiny dot in the center. The 517 has this type of reticle. However they also now have ones that have multiple dots, calibrated for M855 bullet drop at various ranges, or one that is a simple dot. You can get these on some of their higher end sights.
In terms of choosing between an EOTech or other high quality reflex sight like an Aimpoint it comes down largely to which style of body and reticle you prefer. EOTechs offer a very wide field of view and don't occlude your sight very much as opposed to the more tubular type of sights. I find this to be an extremely nice feature. They are much more natural for shooting both eyes open, which is what you are getting a reflex sight for. Also to consider is the reticle design. Pretty much all other sights are "red dots". That name says what they are very well: They put a small red dot as the point of aim. It works well enough but a better reticle is rather nice. Not only does the EOTech have a wide circle for quick, close acquisition, but its center dot is very precise, smaller than any red dot I've seen (since the EOTech uses lasers rather than LEDs). Also the reticle is a holographic projection, meaning that it doesn't change apparent size as you move around. If you move the sight away from yourself, it doesn't get any smaller.
The only real downside of an EOTech vs an Aimpoint is battery life. An AA EOTech like the 517 will run like 500-1000 hours on a set of batteries depending on brightness and kind of batteries (lithium last the longest, alkaline next, rechargeables the least). Aimpoint makes a number of sights that last years, literally, on a single battery being turned on the whole time. So you have to turn the EOTech off when you aren't using it (and it'll turn itself off after 4 or 8 hours depending on which button you push if left alone). However that's still plenty of time, it isn't only a couple hours like some of the cheap ones, and changing batteries is extremely easy and quick.
All in all, EOTechs are my favourite reflex sights on the market, and hence I got one. It was purchased direct from Amazon and is a real EOTech. They have a guide on their web site as to how to tell the difference, and if you've ever seen and used a real one a fake is quite apparent for its lack of optical quality. If you have no need for night vision, and if you have a weapon that can handle a large sight like an M4/AR15 then I'd recommend getting a 517. They are great and not too expensive.
I thought about knocking it down to four stars because the shipping company (lasership, I believe) "delivered" the product over my fence during a moderately heavy rainstorm. Normally, FedEx or UPS would, at the bare minimum, put the package into a plastic bag if leaving it outdoors. This was NOT the case, as I came home to a sopping wet cardboard box. Fortunately for me, the EOTech comes in a hard plastic case (and is waterproof, too). Decided against knocking it down a star because this is a review of the product, not the shipping company.
Quick recap: Great item, I'd recommend it, but I had a bad shipping/delivery experience. No fault of the seller or Amazon.
L3 EOTech lost a $25mil lawsuit and is now accepting all products RMA'd for a full refund (just request so on the form) plus $15 shipping.