China does have a huge amount of Airsoft products and likely the gun sites mentioned above to go with it.
What exactly does the fluorescent rod do though? I use a lot of the cree LED bike lights for mountain biking at night, but can't see a little dot being particularly visible to cars.
Airsoft they do have... However, I didn't know of those products for real guns, as I'm not into guns (or seriously into airsoft anymore for that matter). Besides, I've now found what I needed. So, I'm good.
The rod lets me know that the CREE LED that is illuminating the road is working without having to let go of the handlebars/brakes and put a hand in front of it. When it's wet and dark out, sometimes you can't tell if your light is really on. I've had Niterider indicator lights that showed that the light was charged and working. However, the actual headlight (typically a Halogen light (and in one case a LED light)) wasn't, and I couldn't tell because of the wet conditions. I was a Niterider fan for years but now I'm sold on Cygolite's Expilion 850 light. Niterider's lights were good, much better than cheaper lights such as CatEye and Bell, but I seemed to be sending them in for repairs way too often.
The Cygolite's biggest draw is the end user swappable internal battery. When NiteRider's batteries would die (as in not take a charge anymore), it was cheaper to just replace the whole unit with another system than replace it (and technology was advancing considerably with brighter and brighter lights that had longer run times). The last straw was when my Cordless Minewt 600's battery died, and I couldn't replace the battery for less than a replacement. The electronics were good, and the light was bright, but blowing that amount of cash just to buy a battery was insane. Another advantage with the Expilion was that if the light went flat (and I had purchased a replacement battery stick) I could swap it out in the field and keep going. I never did buy the extra battery though. Now I might. I'll add that none of my NR lights lasted for more than a couple of years. My Expilions have been maintenance free for about 3 1/2 years. Had I not lost the old one, I'd eventually have needed to replace the battery (thought it was still giving me good run times when I lost it), but I doubt that the light would have failed me for years to come.
And the photo below shows how many NR lights I had by the end of things (about 10 years worth). Yes, that is my bike, and those are all my lights, and I actually rode like this (as a joke). I usually rode with one or two headlights on the helmet, and up to 4 on the handlebar/handlebar extender. It took a lot of dollar store D cell batteries to get the old halogen systems up and working again for that ride (thus a further use of the handlebar bag I made for Cycle Oregon 2009). Top left was a laser from an airsoft gun I had at one time. Those lights are now in storage, and can be dragged out when I get back to the states for another "be seen" night ride.