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Eotech on Ar-15 Help/Question

Discussion in 'Rifle Country' started by AR27, Oct 6, 2010.

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  1. AR27

    AR27 Member

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    I have my eotech 512 zeroed on my AR15, it is mounted in rail slot T-12. If i were to move it forward about 2 slots to T-13 or T-14 would it lose zero or not be hitting the exact same as it was? Any help is appreciated
     
  2. C-grunt

    C-grunt Member

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    Most likely it will be off by a bit. You need to rezero any time you change the position of an optic.
     
  3. Z-Michigan

    Z-Michigan Member

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    What C-Grunt said.

    It will probably be closer than if you took a new one out of the box and put it in the new position, but will need re-zeroing or at least checking zero.
     
  4. FLAvalanche

    FLAvalanche Member

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    It will more than likely need a couple of clicks adjustment. I had to adjust mine 3/4" at 100 yards after moving mine forwards a couple of slots to make room for a magnifier.
     
  5. AR27

    AR27 Member

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    thanks everyone
     
  6. General Lee

    General Lee Member

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    I take my Eo-Tech off my AR and switch it out for a scope occasionally and it zeroes if I put it in the exact position.
     
  7. possum

    possum Member

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    it will not be the exact same poa/poi as before, maybe so little that you could hardly tell, however if i missed it i would still re zero it.
     
  8. TonyAngel

    TonyAngel Member

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    How much it will be off will depend on how warped or not straight your upper receiver is. They are have variances, some more than other. I have a Daniel Defense upper on one of my builds and I can move the scope at will with no appreciable change in the POI. I don't know if all DD uppers are like this or if I just got lucky.

    I also have a Rock River upper and if I change the position of the scope, the POI will be off by about an inch. I guess it varies.
     
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