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Posted: 9/8/2007 12:43:36 PM EDT
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Anyone have problems. My TA31 RCO fiber optic has completely split. looks like it's in two pieces and although it doesn't appear to affect the performance, it is rather unsightly. Will post pics later Mark |
The newer ones are clear and don't have cracks and bubbles.
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There is a gel like liquid between the red fiber optic and the outer housing. If the cracks are not causing any leaks, then you are good to go. My 31F went for about a year without any cracks. They first showed up when using it on a hot day, I think moving it to and from an air conditioned vehicle was the culprit. The plastic that is used for the housing (lexan?) is supposed to be very good at transmitting light, but it doesn't hold up very well to fracturing. That said, the fractured housing doesn't allow the optic to leak and doesn't seem to reduce the light transmission, so other than it looking odd, it isn't a problem. Trijicon can replace the housing with a different type of plastic that is more fracture resistant, but it doesn't transmit light as well and will lead to a bit darker reticle. |
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They might get a bit shitty about "grey imports". Actually, I've started to repair it. I've filled the crack with Superglue, which seems to have worked. When it's fully dry, I'll rub off the excess. The crack will still show, but now that the lexan rod's 'pinged', it shouldn't get any worse. More pics later Mark |
My TA31A looks much worse than that and it hasn't changed a thing. (most of the time, there is electrical tape over that part anyways) |
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Unless Im mistaken, the whole rod is suspended in a gel, inside the clear housing. The back end is held in place by sliding into the rear of the housing and the front is held in place by a cross pin. It seems to me that the scopes have been put in tremendously hard use on many thousands of military weapons. Like everything on a gun, they have their advantages and disadvantages. They are not the be all end all of optics, but never once have we heard of anyone complaining about their being fragile in any way shape or form. In fact, if anything, we hear about how incredibly durable they are. Hence, I would not worry about the fiber optic, or its housing. 
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