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10/2/2007 3:41:12 PM EDT
I'm new go AR's, fairly new to guns period.  If I mount an EOTech sight to my AR and sight it in, then remove it for a while, will it still be "accurate" when I mount it back up?  Or will I have to re-sight it in?  Thanks for any advice
10/2/2007 3:47:06 PM EDT
[#1]
the factory mounting system will be hit or miss, you might see some shift, you might not.

get a quality mount from larue, or some of the others and you can remove and replace it with minimal shift.
10/3/2007 4:03:54 AM EDT
[#2]

Quoted:
the factory mounting system will be hit or miss, you might see some shift, you might not.

get a quality mount from larue, or some of the others and you can remove and replace it with minimal shift.


Thanks for the tip
10/3/2007 4:42:56 AM EDT
[#3]
Try LaRue (around $200, but it will raise the reticle so that your BUIS is in the lower 1/3rd) or go with a GG&G accucam (around $80) but the reticle will be right in line with your BUIS.  (I'm assuming that you're currently mounting directly to the rail)
10/3/2007 5:32:41 AM EDT
[#4]
According to EOTech the built in mount is +/- 1 MOA when removed and re-mounted.

It's possible to get it to return to zero by always mounting your EOTech in a consistent manner.  I've had excellent luck using the procedure below.

1. Always mount your sight on the same rail address.

2. Put the the sight on the rail and push it forward as far as will go.

3. Use the a quarter to tighten thumb screw hand tight and then snug it down for another 1/2 turn.

4. Though EOTech does not recommend it I have also used blue Loctite 242.  This will ensure the thumb screw will not loosen up when the sight heats up during extended firing sessions.  

Some tips on using the sight.

1. Focus on the target not the reticle.  Focusing on the reticle will make it appear blurry and pixelated.

2. When you need to make precise shots lower the brightness of the reticle until you can just make out the 1 MOA dot and then bump it up a level or two so that you have nice fine aiming point.  As always focus on the target.

3.  The 65 MOA outer ring may look pixelated but this is fine because it's not used for precision shooting.  Use it like a ghost ring for closer targets.  Put the ring COM and press the trigger.

4. The 65 MOA ring is the same size the space between the ears of a standard FSB.  65 MOA will cover the upper torso of an average sized man's body at 50 yards and from the ankles up  at 100 yards.  At 200 yards a average height man will be about half the diameter of the 65 MOA outer ring and at 300 yards roughly 1/3 the diameter of the 65 MOA outer ring.  Please remember, these are just rough estimates but at least you can get and idea of how far a human sized target is.
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