Frequently Asked Questions

Q: How does an "O.E.G." sight work?

A: An "Occluded Eye Gunsight" works because of the brain's ability to "blend" the red dot in the sight with the object that you are sighting at. This is a function of "binocular vision" that we posses. It is important to note that both eyes remain wide open while sighting allowing for maximum peripheral vision.

Q: Do the Armson O.E.G. sight requires batteries?

A: No. Armson sights use a fiber optic light collecting element, and do not use batteries. Tritium models are also available to provide additional self powered illumination in low level light conditions.

Q: Do Armson O.E.G. sights contain Tritium?

A: Armson OEG sights were produced without Tritium for a period of time but are now available either with or without Tritium. A Tritium upgrade is available for O.E.G. sights originally purchased without Tritium.

Q: Can you replace the Tritium element in my older Armson sight if it becomes dim?

A: Yes. Tritium replacement service is now available. There is a downloadable Return Form with additional information on the Tritium Upgrade page.

Q: How long does Tritium continue to illuminate the dot?

A: Typically 12-15 years at which point the Tritium can be replaced by our service department for a small fee.

Q: How durable are Armson O.E.G. Sights?

A: Armson Sights are designed and built to exacting Military standards, and are considered virtually indestructible under normal operating conditions.

Q: What is the difference between the new Armson sights and the Armson sights from Trijicon?

A: There is no difference. Trijicon became a distributor of Armson sights in 1981 +/- and was the primary distributor in North America until approximately 2000. They did an excellent job of originally introducing Armson to the U.S., as well as maintaining a high standard of customer service during that time.

Q: How are O.E.G. sights "sighted in"?

A: The O.E.G. sight must be used with both eyes open at all times. The user must concentrate on the target not the sight when aiming.

Before loading the weapon or zeroing the sight, practice raising the weapon and placing the spot on the target until it can be done quickly every time. This will save time and ammunition when zeroing.


The small screw in the center of each adjuster must be loosened slightly until the adjuster can be turned by hand (this is important, as the plastic adjustment knob can be stripped).

Only the user must fire the weapon when zeroing. The sight cannot be zeroed by one person for another to use.

Stage 1: Rest the weapon and line up the iron sights with the target, then without moving the weapon observe the position of the spot in relation to the target. Move the adjusters until the spot is also on the target.

Stage 2: At a range of approximately 25 yards (depending upon weapon type, and the expected range at which the target will be engaged), raise the weapon, place the spot on the target and fire immediately. The sight is then adjusted up, down and left or right until the hits are in the center of the target. The weapon may be moved to 50 or 100 yards for final zeroing if required. When zeroing is complete, re-tighten the locking screw in the center of the adjusters.

Dry practice without firing is very beneficial and improves skill without using ammunition.

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