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EOTech 512.A65 Tactical HOLOgraphic AA Batteries Weapon Sight

by EOTech
313 customer reviews
| 52 answered questions

List Price: $459.00
Price: $415.00 & FREE Shipping. Details
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Only 14 left in stock.
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  • Holographic sight designed for close-in combat speed and versatility
  • Uses laser light to illuminate holographic red reticle projected on target plane
  • Improves target acquisition, boosts accuracy, and increases control
  • Rugged aluminum hood assembly; knobbed, tool-free mounting bolt
  • Requires 2 AA batteries; supports 1-inch Picatinny or Weaver rails
47 new 1 used from $425.00

$415.00 & FREE Shipping. Details Only 14 left in stock. Sold by Deals4YouToo! and Fulfilled by Amazon. Gift-wrap available.

Frequently Bought Together

  • EOTech 512.A65 Tactical HOLOgraphic AA Batteries Weapon Sight
  • +
  • Scopecoat Cover for Eotech 552, 512 and Bushnell AA Holo Sight Black w/ OP SC-EO-552-BLK-OP
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  • Gg&G Eotech Lens Cover For 512/552
Total price: $462.41
Buy the selected items together

Product Description

Product Description

The HDS uses state-of-the-art Digital electronics design. Twenty brightness levels ensure proper brightness control in either low light or very bright sunlight. An on-board microprocessor provides automatic battery check indicator, up/down brightness scrolling and programmable auto shutdown features. All electronics are fully encapsulated in shock absorbing resin compound.OperationOptics: Transmission holography - 100% parallax freeMagnification: 1x unlimited eye reliefTemperature:-20 to 150F (operating); -40 to 160F (storage)Sealing: Waterproof (submersible) & fogproofColor/Finish: Non-reflective black with hard coat finishAdjustment (per click): 0.5-Inch at 100 yardsAdjustment Range: +/- 40 MOA travelMount: 1-Inch Weaver dovetail/Picatinny rail (Mil spec 1913)Return to Zero: Repeatable to 1 MOA after remountingHeads-Up Display Window Optical Surfaces: Anti-glare and scratch resistant coatingsWindow Dimensions: 1.20-Inch x 0.85-Inch (30 x 23 mm)Window Material: Shatterproof laminate (3/16-Inch thick)Field of view (100 yards): 30 yards (28m) at a 4-Inch eye reliefStandard Reticle: 65MOA ring with quadrant ticks with a 1MOA Aiming dotReticle Contrast Ratio: 28,000:1 brightest to lowestNight Vision CompatibleElectrical Power Source: 2 x -InchN-Inch alkaline batteries (available anywhere)Battery Life: 70 hours at nominal setting 12 (AA batteries: 350 hrs)Brightness Settings: 20 settings with scrolling featureAuto Battery Check Indicator: Flashing reticle upon startup if batteries are at 20% of battery life.Auto Shutdown: At 8 hours - programmable to 4 hours-Model 510 AA -Order code 512.A65-Waterproof & Submersible To 10 ft depth -Battery AA lithium, alkaline, or rechargeable-Battery Life (setting 12) 500 hours continuous-Length of sight 5 inches (131 mm)-Reticle Options 65 MOA ring w/ 1 MOA dot-Weight: 11.5oz (326 grams)

EOTech's most popular holographic weapons sight, the Model 512 is perfect for people who want the best in close-quarters-combat speed and versatility but don't need night vision. The Model 512 sports a revolutionary sighting system based on advanced holographic technology. The design works by using laser light to illuminate a holographic pattern embedded in the heads-up display window. When the shooter looks through the window, he or she will see a virtual red image of a reticle pattern projected onto the target plane. Overall, the holographic sight improves target acquisition, boosts accuracy, and increases control over the shooting environment.

The Model 512 is built to last, with a rugged aluminum hood assembly and knobbed, tool-free mounting bolt. Other features include a 65 MOA circle reticle with a 1 MOA aiming dot; support for two 1.5-volt AA batteries (lithium or alkaline); unlimited eye relief; and 20 brightness settings. The Model 512 is compatible with 1-inch Picatinny or Weaver rails.


  • Optics: Transmission holography, parallax-free
  • Magnification: 1x
  • Eye relief: Unlimited
  • Waterproof: Submersible to 10 feet
  • Sealing: Fogproof internal optics
  • Adjustment (per click): 0.5 MOA (1/2 inch @ 100 yards)
  • Adjustment range: +/- 40 MOA travel
  • Mount: 1-inch Picatinny or Weaver rail
  • Return to zero: Repeatable to 1 MOA after remounting
  • Display window optical surfaces: Anti-glare coating
  • Window dimensions: 1.2 by 0.85 inches
  • Front window material: 1/8-inch solid glass
  • Rear window material: Shatter-resistant laminate (3/16 inches thick)
  • Field of view: 30 yards @ 100 yards at 4 inches eye relief
  • Brightness adjustment range: 110,000:1 (brightest to lowest)
  • Night vision compatibility: No
  • Power source: Two 1.5-volt AA batteries (supports lithium, alkaline, or rechargeables)
  • Battery life: 1,000 continuous hours (lithium) at nominal setting; 600 continuous hours (alkaline)
  • Brightness settings: 20 with scrolling feature
  • Auto battery check indicator: Flashing reticle upon startup
  • Auto shutdown: At 8 hours; programmable to 4 hours
  • Dimensions: 5.4 by 2.25 by 2 inches (W x H x D)
  • Weight: 10.9 ounces

Product Details

  • Product Dimensions: 5 x 1.8 x 2.2 inches ; 10.9 ounces
  • Shipping Weight: 1.2 pounds (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Origin: USA
  • Item model number: 512.A65
  • Average Customer Review: 4.8 out of 5 stars  See all reviews (313 customer reviews)
  • Amazon Best Sellers Rank: #19,286 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Product Warranty: For warranty information about this product, please click here
  • Discontinued by manufacturer: Yes

Customer Reviews

Most Helpful Customer Reviews

177 of 188 people found the following review helpful By LesnOfYerLif3 on August 27, 2012
Verified Purchase
Since writing my initial review - I have taken this sight to the range 6+ times. I can actually shoot groups @ 50 yards (150 feet) where the holes in the paper are actually touching each other. I am not talking about just doing this once and a while - I am talking about actually shooting out the bulls-eye on my target. I swear to God, it feels like my rounds are guided to the target by a magnet! I haven't had to adjust my sight since I sighted it in the first time - I just instinctively shoot high (aim a tad higher than the target) when shooting at targets beyond 100 yards or more. I am very satisfied with this purchase: the HWS really is the gold standard when it comes to red dot sights.

below is my initial review: it covers everything from my experience buying the cheap EOTech knockoffs to co-witnessing your sights (the right way) to the rail adapter on the HWS. Please read if you are considering purchasing the HWS because I present you with a lot of specifics about how to set this sight up the proper way.


I made the mistake of purchasing one of the mislabeled EOTech clones for my 6.8mm SPC M4A3 only to realize that the old adage, "you get what you pay for," applies specifically and directly to weapon sights.

What this experience taught me is that I really like the EOTech design. You can't get a better sight for an AR-15/M-4 design than EOTech because these sights were specifically designed to work with that platform/firearm. The Chinese knockoff was a disaster - it couldn't stand up to recoil and had a cheap plastic battery compartment. I sent it back, grew a pair and bought the real deal (512 HWS).

I couldn't be happier with my purchase. I paid $365 for mine, new, right out of the box.
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103 of 112 people found the following review helpful By C. Racciato on July 7, 2010
I have used an EOTech 512 for several months now. I am not in the military or law enforcement. I am not an "operator" or whatever the current catchphrase is among the mall-ninja crowd. I am just a casual shooter. That being said, I do expect good performance out of the equipment that I buy. This model did not disappoint. I have found that it is simple to use, and accurate. It holds it's zero through long shooting sessions and banging around out in the boonies. I have yet to replace the batteries in mine, but I also don't leave it on when I am not using it. It has held up to the recoil of 7.62x39 and 6.8 SPC with no problems. I know, they aren't noted for their heavy recoil, but that is all I have used it on. The sight gives me faster target acquisition than an Aimpoint M3. But as others have noted, the battery life is nowhere near that of the Aimpoints. 600-1100 hours versus 5 years. In all truthfullness, that isn't as big of an issue for me. AA batteries are cheap and easy to find. Rechargable ones can be had with the charger for less than a pair of the batteries that the standard Aimpoints use. The only real problems I have had with the 512 are the length and the location of the controls. Because it uses regular AA batteries, it is longer than other EOTech sights. This makes it a bit more difficult to mount on something with limited rail space, especially if you want to mount a night vision device or magnifier on the rail with it. I was unable to mount this and a magnifier on a standard AR 15 flat top receiver. The control buttons are located on the rear of the scope. That is just fine if you are not planning on mounting anything behind it. But if you wanted to use a magnifier or anything else, it becomes difficult to reach the controls.Read more ›
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49 of 56 people found the following review helpful By Gearhead Mania TOP 1000 REVIEWER on June 1, 2010
The 512 model (Rev F) is supposed to contain new parts that solve the short battery life issue, however my experience shows that the 512 still has problems with battery longevity. Using alkalines for storage, they will be completely dead within a year even if you don't use the sight. Meanwhile, my wall clocks and remote controls run the same alkalines for 3-5 years without needing a replacement. There is a significant amount of standby current draw with the 512, translation: it saps a LOT of juice even when it is shut off.

The 512 uses a pair of AA batteries, so you can run Lithium, NiMH rechargeable, or alkaline although you will get better life out of the Lithium or NiMH. There are lots of reports about EOTechs with corroding battery terminals, terminal springs that fail, and in my experience I found lots of debris behind the lens. EOTech's customer service is excellent and they replaced the sight without any problems. Some people have a fetish with batteries and will replace them every 3-6 months like a smoke detector.

The EOTech mount utilizes one thumbscrew and a bar that clamps onto your Picatinny or Weaver rail. This thumbscrew has a tendency to come loose, so make sure you crank it down with a coin or screw driver.

The reticle is a 65 MOA circle with a 1 MOA center dot. When magnified, the center dot remains a true dot although the entire reticle is pixilated. It's only fuzzy if your vision isn't corrected to 20/20 when looking through it.

The innovative holographic design makes it easy to use for both-eyes-open shooting, although there is a huge debate between EOTech and Aimpoint users

The reticle is fast to use but can get busy on certain targets.
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