Sage Dynamics Takes us to School on Parallax

Parallax is a word you’ll inevitably read and hear before to long when it comes to optics on firearms.

Certain optics have a parallax adjustment tool or knob. Certain reddot, reflex, and holographic weapon sights are advertised as being ‘parallax free’ or have so very little it matters negligibly. Others have a fixed parallax distance that covers a practical range for the optic.

But what is it? It’s a distortion caused by light passing through multiple lens combined with needing a proper position for the shooters eye behind the optic to get a proper sight picture. What you see is not always exactly where you are aiming.


Keith is the Editor-in-Chief of GAT Marketing Agency, Inc. A USMC Infantry Veteran and Small Arms and Artillery Technician, Keith covers the evolving training and technology from across the shooting industry. A Certified Instructor since 2009, he has taught concealed weapons courses in the West Michigan area in the years since and continues to pursue training and teaching opportunities as they arise.