POI shift when using a 3x magnifier.

[Cylinder Head]

I'm using an Aimpoint 3xmag with my CompM3 and have not noticed any shift. Glad to hear it wasn't the equipment, sorry to hear it was your vision.

[asmo]

I forgot to comment back on this thread. Let me be clear a magnifier can and will absolutely cause POI shift if the red dot is not centered within the magnifier.

When this question was originally asked I was actually out with Travis Haley working that exact issue. We tested with an Aimpoint 3x and an Eotech 3x and both introduced subtle POI shifts. We could make the shift go left, right, up or down at will by simply adjusting the retaining screws that attach the mount to the magnifier.

When we got the red dot to the exact center of the magnifier the POI shift stopped - but the slightest bit out of center was noticeable, repeatable and predictable.

This was done with both a T1 and a PRO. I suspect it will be the same for EOTechs but haven't had a chance to go out and test yet.

[C Ward]

Anything that changes the perceived location of the sights , open or optical , will give a POA/POI shift . Some examples , light conditions , mirage , eyesight , parralax , etc. can and will cause a shift .

[SuperiorDG]

I forgot to comment back on this thread. Let me be clear a magnifier can and will absolutely cause POI shift if the red dot is not centered within the magnifier.

When this question was originally asked I was actually out with Travis Haley working that exact issue. We tested with an Aimpoint 3x and an Eotech 3x and both introduced subtle POI shifts. We could make the shift go left, right, up or down at will by simply adjusting the retaining screws that attach the mount to the magnifier.

When we got the red dot to the exact center of the magnifier the POI shift stopped - but the slightest bit out of center was noticeable, repeatable and predictable.

This was done with both a T1 and a PRO. I suspect it will be the same for EOTechs but haven't had a chance to go out and test yet.

This^^^

Thanks for not making me type that out.

[mutt]

I forgot to comment back on this thread. Let me be clear a magnifier can and will absolutely cause POI shift if the red dot is not centered within the magnifier.

Understood. I have the dot centered in the magnifier, at least what my eye tells me is centered =) I probably could play with the magnifier adjustments and compensate for for the POI shift, but it's just not worth the effort. I've played with the setup enough to realize it's not for me.

[brutal]

I had to adjust my aimpoint 3x slightly to get proper poa/poi. That said, I'd rather have an Acog, mostly due to the ghost dots I see with the M2. I shoot much better with the acog. Although I did whack a chippy first shot @40yds with a friends eotech on a 6.5" FA AR.