Welcome back to the 5th installment of my blog, in which I don’t claim to be an expert, in fact the very opposite. I’m a new user to the AR platform and want to share my findings and experiences as I go through and build rifles as well as being the Operations Manager at Tyrant Designs.

Today’s topic of extreme importance is “zeroing in” your sights. Because you’re super smart, I don’t need to explain the importance of your rifle hitting its intended targets. But I do believe a little physics lesson is in order to better demonstrate bullet trajectory. NERDDDDDD.


In the late 1600’s Sir Isaac Newton was sippin' on some tea and watched an apple fall from a tree. Long story short, he ended up publishing a theory on the force that makes things fall down, which is called gravity.

 “Cory, I came here to learn how to zero in my sight, not get a science lesson” OK OK I get it, but knowing why gravity is important will help us better understand zeroing in our sight.

 The bullet leaves your rifle in an arch because of gravity. Zeroing in your rifle is adjusting your optics so the line of sight will intersect the path of the bullet (at a given distance).

 In a perfect world every target you shoot would be the same distance away, meaning you would only have to zero in your sight once. But most people would like to hit different targets at different distances, so we need to account for this.


  1. Find Mechanical Zero (Use a sighting stand to remove human variance)


  1. Shoot a group of 5 rounds at a distance of 25 yards.(use sighting target)


  1. Find the center of the groupings and measure the vertical and horizontal lines so you know how much you need to adjust your sights.


  1. You want to move your rear sight in the direction you want your shots to go on the target.


  1. You want to move your front sight in the opposite direction that you want the shots to show on your target.


For different optics you might want to consult your product manual or the manufactures website for more information. This was only meant to be a very basic guide.


This was fun but it’s Friday and we do prototype testing at the range on Friday's. What's that? Cory what are you testing this week? Oh, just this bad@ss Mini Vert Grip that we will be selling soon. Apparently its going to be pretty inexpensive. No big deal...

 AR-15 mini Vert Grip | Tyrant Designs CNC