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Optic of the week: Trijicon TA31I Israeli issue

I came across something I had to pick up. Fortunately I’ve been selling off odds and ends I don’t use so I had a few extra bucks.


At first glance, it looks like any other 4x magnification dual illuminated ACOG.

But the markings are a little different.

I’n the past I’ve seen pictures of the Israelis using TA01NSN ACOGs that have a crosshair with bullet drop chart (BDC). Later pictures show a dual illuminated model. I had just figured they were using TA31F scopes or similar. Turns out they custom ordered a model. It has markings specific to them and a custom reticle.

After getting one of these surpluses scopes, I installed some adjustment caps and a mount that I had laying around. I suppose it helps that I am an ACOG junkie. I threw it on one of my rifles Saturday for test firing.

Adjustments appear to be the standard internal 1/3 MOA. Operation is just like any other older 4x ACOG.

The reticle is a dual illuminated donut. There is a BDC out to 500 (meters I would wager), and horizontal lines. I find these lines quickly draw the eye to center of the scope, and I think this reticle would be rather fast for quick shooting.

I have yet to be able to get a copy of the manual for this model, so I don’t know what the markings and subtensions are. I’ll update this post when I find out.

The Tritium is completely dead on these surplus optics. I wonder if it was removed before they were brought into the US to aid in importation. I imagine it was probably quicker and easier, maybe cheaper, to replace the optics verses having them rebuilt, so that is why these likely have been surplussed out.

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