How to Zero in a Red Dot Sight
We all want to be accurate in our shooting.
As close to the bulls eye as possible every time.
Check out these tips to help you zero in your red dot and get you as accurate as possible on the range with your AR-15.
Zero in with Aimpoint shooting target
1.Set up the Aimpoint target at 25 meters.
2.Place firearm in solid rest and center dot on target.
3.Take one shot and inspect the point of impact.
See image “Target 1” above
This target shows that the point of impact was too much to the right and a little too low
Video on How to zero in a red dot sight
Check out the Aimpoint PRO Patrol Rifle Optic @ Amazon.com
4. With the information given on top of the printed Aimpoint shooting target, and by counting the number of squares between the actual point of impact and the desired point of impact on the target, you can quickly and precisely determine how many clicks you need to move the adjustment screws in order to zero your sight.
See image “Target 2”, in the column to the right here
NOTE: The number of clicks per square is determined by the distance to your target.
5. Take another shot to check that the point of impact is centered. If you still need to adjust slightly, repeat the procedure.
Video on How To Zero A Red Dot Optic Aimpoint PRO
Check out the Aimpoint 2OA CompM3 Sight @ Amazon.com
Question: What is a good entry level red dot scope if am just starting out?
Check out the 
That being said, for the price, the Bushnell Trophy Red Dot TRS-25 3 MOA Red Dot Reticle Riflescope
Question: My red dot battery keeps going dead after only a few weeks. What am I doing wrong? You are probably leaving it on the 1 through 11 setting (increase of red dot). It needs to be set on 0 (zero) after you finish for day. If you leave it on 1 – it will slowly drain the battery.
Question: How to adjust Bushnell trs-25? Check out the info and review in the video below.
The Bushnell Trophy Red Dot First Strike 5 MOA Red Dot Reticle Riflescope
You can pick up one for under $120.
Question: Do you have any tips on sighting in a Deltapoint pro from Leupold?
Answer: We are currently working on a review for that scope and will post up a link when finished.
Question: How can I find out more about the NRA? Check out the website here:
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January 11, 2016 @ 4:48 pm
I recently bought a POF rifle and a EOTech sight. The rifle does not have a front sight. Do I need one and where would I go to get a proper front sight?
June 5, 2016 @ 2:54 am
Yes, my opinion is always have back up iron sights. I use an EOTech 512 with Diamond Head irons. If your AR has the top rail, indeed add a iron rear and hopefully you have gas impingement front sight assembly. If not, I’d add a front sight as far forward on the rails as possible.
December 20, 2018 @ 1:41 pm
Iron sights for me too! I always use AR platforms for zeroing the red dot and use lollipopping (absolute co-witness) as a method. Though i prefer zeroing at 50 yards as it also gets zeroed for 200 yards.
January 31, 2019 @ 5:24 pm
I just got a reflex sight n having trouble sighting it in with my ar15….the sight I have to aim really low to hit the target..i tried at 36yrds then i went to 50yrd….i still have to aim low I tried to raise the red dot but it’s at its limit…cant turn anymore….i no I’m doing something wrong….i did get the back up sight…but the damn reflex sight…..any help would be a blessing
February 4, 2019 @ 10:32 am
Hi Tim,
Not sure what type of red dot you have, but if it’s any thing but a Vortex/Aimpoint/Sig Romeo/Trijicon, we’d suggest getting a new sight. Products made by NCStar or Monstrum will not last long. Buy one, cry once, right. That being said, I’d buy a laser boresight, and calibrate your red dot that way. Set it up, making sure it’s clear of course, and point it at the wall with the boresight in the chamber/barrel. Then adjust the red dot until the red dot on your sight overlaps the laser. Hope this helps.
February 4, 2019 @ 10:32 am
Hi Tim,
Not sure what type of red dot you have, but if it’s any thing but a Vortex/Aimpoint/Sig Romeo/Trijicon, we’d suggest getting a new sight. Products made by NCStar or Monstrum will not last long. Buy once, cry once, right. That being said, I’d buy a laser boresight, and calibrate your red dot that way. Set it up, making sure it’s clear of course, and point it at the wall with the boresight in the chamber/barrel. Then adjust the red dot until the red dot on your sight overlaps the laser. Hope this helps.