New AR15 - How to zero BUIS and Aimpoint T1

Glad to help...I can't take credit for creating them, but the numbers on the grid actually amount to clicks on the Aimpoint, which makes life a whole lot easier than just guesstimation.

Before putting the optic on (or take it off) I zero the iron sights at 100M, then I put the red dot on and adjust it until it is sitting right on the top of the front post of the irons to get it close. Then fold the irons down and zero the red dot. With both an Amipoint T1 and and EOTech when I have finished zeroing both, the red dot sits right on the top of the front sight post when sighting with the irons. Lower 1/3 co-witness with LaRue mounts for both RDS.

Cameron

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Originally Posted by kal0220

Sgt, how do you zero? I'm asking out of curiostiy only.

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I zero my irons, then adjust the dot so it sits halfway up the front sight post. That way the center of the dot is the same as my irons.

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Originally Posted by Russell92

I'd also recommend zeroing your iron sights with the T-1 attached. Depending on which T-1 mount you have part of the rear sight aperture might be blocked by the bottom of the T-1; this could cause you to align the iron sights slightly differently than you would with the T-1 removed.

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This is a valid observation, especially with new shooters to the configuration. Depending on sight heights, you may or may not see the full circumference of the rear BUIS aperture, creating potential for some vertical misalignment. Usually, it's not enough to make a big difference at closer ranges, but it can be substantial at distance.

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Also, zero the iron sights with the small aperture.

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I prefer the large, but as long as you make hits when and where you need them, gtg.

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Originally Posted by thopkins22

If I were you, I'd go to panteaoproductions.com and sign up for 1 month and watch all of the online training videos. Both Paul Howe and Travis Haley go into detail about zeroing the rifle.

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Thank you so much for your advice and referring me to panteao productions. That site is awesome..I've already learned a ton.

thanks again.

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Originally Posted by BaronFitz

Here are some links to some very useful zeroing targets that I found on here earlier.

25 Yard Zero

50 Yard Zero


Enjoy!

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Anyone know of targets just like these for the T-1 but for 100 yards?

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Originally Posted by Skintop911

I prefer the large, but as long as you make hits when and where you need them, gtg.

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I'm no expert, but I agree. Given that the BUIS is basically an "emergency" backup sight, it makes sense that it will be used at close range if the optic goes down, hence the need for the large aperture since you can pick up targets more quickly, or at least in my humble civilian experience.

The small aperture IMHO is for more careful aimed longer range shots, which you might decide not to take in a civilian personal defense scenario.

I'm just philosophizing, but I've given this a lot of thought--agree or disagree.

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Originally Posted by Colt1910

Thank you so much for your advice and referring me to panteao productions. That site is awesome..I've already learned a ton.

thanks again.

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You're welcome, it's good stuff.

I zeroed my T-1 first, since I didn't have a rear sight once I took the carry handle off the 6920. Then I slapped on a magpul mbus, lined the front and rear sights up with the red dot (lower 1/3 co-witness), fired... perfect iron sight zero:D.