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Eotech 512A65 Holographic Tactical Weapon Sight

Model: 512A65
Condition: Factory New
Bud's Item Number: 18582
UPC: 672294512653
MFG: Eotech

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  • Optics: Transmission holography - 100% parallax free
  • Magnification: 1x
  • Eye Relief: Unlimited
  • Length/Width/Height: 5"x1.8"x2.25" (131x49x60 mm)
  • Weight: 11.5 oz (326 grams)
  • Temperature: -40 to 150 F (using AA lithiums); -20 to 140 F (all other battery choices)
  • Waterproof: Submersible to 10 ft depth
  • Sealing: Fogproof internal optics
  • Color/Finish: Non reflective black with hard coat finish
  • Adjustment (per click): 0.5 MOA (1/2" at 100 yds)
  • Adjustment Range: +/- 40 MOA travel
  • Mount: 1" Picatinny (MIL-STD-1913) rail
  • Return to Zero: Repeatable to 1 MOA after re-mounting

Heads-Up-Display Window

  • Optical Surfaces: Anti-glare coating
  • Window Dimensions: 1.20" x 0.85" (30 x 23mm)
  • Front Window Material: 1/8" solid glass
  • Rear Window Material: Shatter resistant laminate (3/16" thick)
  • Field of View (100 yds): 30 yds (28m) at a 4" eye relief
  • Standard Reticle: 65MOA circle with quadrant ticks with 1 MOA aiming dot


  • Brightness Adjustment Range: 110,000:1 brightest to lowest
  • No Night Vision Compatibility
  • Power Source: 2x 1.5V AA batteries (supports lithium, alkaline, or rechargeable)
  • Battery Life: 1,000 continuous hours (lithium) at nominal setting 12; 600 continuous with AA alkaline
  • Brightness Settings: 30 settings with scrolling feature (10 settings for NV use)
  • Auto Battery Check Indicator: Flashing reticle upon start-up
  • Auto Shut-down: At 8 hrs- programmable to 4 hrs


Magnification 1x
Objective 1.2x.85"
Field of View 30 yds @ 4" Eye Relief
Eye Relief Unlimited
DOT Size 1 MOA
Length 5.4"
Weight 10.9 oz
Finish Black
Battery AA

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Product Reviews
11 Reviews. Average Rating: 4.8 of 5 Stars! [4.8 of 5 Stars!]
5 stars:
91% (10 of 11)
4 stars:
0% ( of 11)
3 stars:
9% (1 of 11)
2 stars:
0% ( of 11)
1 star:
0% ( of 11)
Reviewed By: Matt C on 02/10/2015 Rating: 5 of 5 Stars! [5 of 5 Stars!]
It's an Eotech. and I ordered it from Bud's. Awesome, and Awesome. Enough said.

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Reviewed By: DANNY N on 01/24/2015 Rating: 5 of 5 Stars! [5 of 5 Stars!]
great Sight, there is a little late and confuse over USPS and UPS but it arrive in 4 day. every satisfied.

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Reviewed By: Brett L on 01/10/2015 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Awesome sight! I ordered it Wed night at about 6pm arrived Sat afternoon!! Another quick and painless transaction with Buds! Thank you.

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Reviewed By: patrick k on 01/05/2015 Rating: 5 of 5 Stars! [5 of 5 Stars!]
great optic. perfect for ar15. highly recommend.

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Reviewed By: AARON S on 10/30/2014 Rating: 5 of 5 Stars! [5 of 5 Stars!]
Fast shipping. I ordered it on Monday night and received it today (Thursday). It is exactly as described and I cannot wait to try it out on my AR.
This is the second purchase through buds and I have had a pleasant experience both times.
As far as the product goes, it feels durable and not as heavy as it looks. I purchased it to go in front of my Eotech g33 magnifier.
Thanks BUDS!

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