TFB Review: Axeon Second Zero – Shift Your Zero

    Axeon Second Zero deployed

    Thanks to Ryan O. for the photo.

    Have you wanted to stretch out the capabilities of your optics without holding over or adjusting elevation? Axeon Second Zero can extend your mean point-blank range with a simple flip of a lens. By doing so your optic’s zero shifts allowing you to engage targets further away than normal and you are still aiming center mass.

    Axeon Second Zero

    The Axeon Second Zero may remind you of another product. The TacomHQ Tarac Alpha is the predecessor to the Axeon Second Zero. In fact, TacomHQ partnered with Umarex USA to create the Second Zero. They offer 4.3 MOA and 11.5 MOA versions. Axeon sells those two fixed versions while TacomHQ continues to make custom versions for their customers. Say you want a 23 MOA shift? They can make it for you. You want MILS instead of MOA? They got that too. But if you want a simple effective off the shelf version then get the Axeon Second Zero. Axeon offers the Second Zero in a rail-mounted version as well as an objective clamping version for rifles that do not have rails in front of your optic’s objective lens. Axeon sent me their 4.3 MOA rail-mounted version.

    The Second Zero is a simple lens that flips up and down.

    The rail mount has a simple lever clamp design.

    Just flip the lever forward to loosen the Picatinny mount. Flip it rearward to lock the mount onto the rail.

    On the other side of the Second Zero body is a latch. This keeps the Second Zero lens deployed and it cannot fall back down unless your release the latch. You only need to press the latch when you want to fold the lens back down. When the lens is already folded down, you just lift it up to deploy it.

    Using The Axeon Second Zero

    How does the Second Zero work? It is a lens that optically shifts your point of aim. It bends the light before it enters your optic. The one I am reviewing shifts my sight picture by 4.3 MOA. What would this be good for? This helps someone who uses a 1x red dot on their firearm. If you zero at 100 yards, the 4.3 MOA Second Zero will shift your zero so now it is a 330 yard zero.

    While we were down in South Texas, I borrowed Ryan O.’s AR pistol. He has an EOTECH EXPS3-0 on a Unity Tactical FAST riser. So I raised the Axeon Second Zero on a short Picatinny riser. While it looks goofy, it works.

    Without the riser, the lens would be too low to shift my sight picture point of aim.

    The position of the second zero is important. It is unidirectional. Turning the lens will shift the sight picture in that direction. I tested this with my Bushnell Elite LMSS spotting scope.

    Axeon Wrap Up

    The Second Zero does take up a bit of your rail space. So you may need to rearrange your accessories to accommodate it.

    Thanks to Ryan O. for the photo.

    Using the Axeon Second Zero worked however I missed quite a bit. This is due to my marksmanship or lack thereof. Trying to hit steel 300-400 yards away with just a red dot is not ideal for my eyes. I prefer to have some magnification. Below is a video I recorded using my iPhone mounted behind the EOTECH to video the Axeon in use. The range was incredibly windy and the lighting made seeing the white 400-yard steel very difficult.

    One nice thing about the Second Zero is that you can use a magnifier to help you see further. However, when I first tested the Axeon lens, I had a plethora of ammo issues. Due to the ammo shortage, the only ammo I had available to me was steel-cased budget ammo that had insanely hard primers. Only 1 out of 6 rounds would actually fire. Both my IWI X95 and Daewoo DR-200 failed to ignite the primers. My HK416 was able to fire one out of 6 rounds. However, due to the inconsistent primer ignition, the bullets were very inconsistent at just 200 yards so I was unable to continue testing it. When I resumed testing down in South Texas, I had better ammo but I did not have a magnifier on Ryan’s gun which made aiming at 400 yards harder.

    Axeon also makes an 11.5 MOA version for a 500 yard zero shift. I had a hard time seeing a 400 yard target so I can imagine aiming at something 500 yards away would be very difficult for me if I was only using a red dot. I imagine you would use the 11.5 MOA version with a scope for longer range shooting. The Axeon Second Zero only costs $79 so it is a low budget option for shooting further as long as you can see your target.

    For more information go to Axeon’s website.



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    Nicholas C

    Steadicam Gun Operator
    Night Vision & Thermal Aficionado
    Flashlight/Laser Enthusiast
    USPSA competitor

    Any questions please email him at [email protected]


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