RE: broken fiber optic in cobra sidewinder sight
It's kind ofa PITA....But it's not REAL bad....Just requires a little patience......Once you get the coil cap off.....I'm shooting off memory here, don't quote me, but from there they are on a peg I believe, and that whole assembly comes out, and from there you can replace whichever one is broke. We do those at the shop occasionally, and I'm sorry I can't be more specific, I just haven't seen enough of them to have it in memory yet...
Depending on where it broke, you can use small needle nose and pull enough fibre out to re-attach it to the pin....