Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: Is this the tritium sight?  The picture doesn't show the two green dots that should be on either side of the apeture
Document: Troy makes great stuff, this sight is no exception. The Tritium is green and glows bright. Sight installs easily, adjustments are easily made, and it locks solidly into place when in use.
This is a quick and easy way to zero the sight. Also, this means that if one's red-dot sight should ever fail, or if the shooter simply wants to use the iron sight rather than the red-dot, this can be done quickly; just fold up the sight and shoot. Or leave it folded up all the time, which is what I find myself doing.The Tritium orientation dots are not that visible but you can see them in darkness.
My red dot will do some very minor roving every several hundred rounds and I have been tempted to realign it by using the troy sights. The tritium feature works just great despite being small. Line up the three dots and you are on target in low light and somewhat even in no light.
This is exactly what you can expect from Troy.If you're reading the reviews, chances are you're wondering if you should really spend this much on something that you will hopefully never use outside of training. Trust me, it's worth it. Save up another two weeks and buy it. If you're looking to spend a little less, go with the standard vs. the tritium, just keep in mind that the tritium could be the difference between life and death at some point.
In my opinion these are the best iron sights money can buy and the only back up sights I would trust. Let's face it, if you need back up sights they Have to Work properly. I have these on two AR's now and will probably buy a third set for an AR I am planning on building. My primary reason for this choice is my experience with the first set I bought which I put on a carbine.
Great back up sight, sits low on rail when folded down and solidly locks when positioned up for use. Tritium is nice and bright in low light.
This sight is available with or without a Tritium dot. The Tritium dot is small, but would be helpful in a night hunting or tactical situation. There is nothing that I do not like about this sight.One cool thing about these sights is that if you use them in conjunction with a red-dot sight (I do; the EOTech XPS2-0) you can co-witness the sight with the red-dot reticle.
Excellent price on a top tier item. Hard to beat Troy's BUIS. The tritium on these isn't very bright and doesn't stand out well unless in total darkness. I'm still waiting on my front sight (backordered) though, so perhaps the tritium on the front sight will make up the difference. Mounts easily. Quality construction (it's Troy, so of course it's quality! ).EDIT: Got the front sight and the tritium feature is pretty useless. Give that feature a pass and save yourself some money.
Simply put, this is a great sight. It is a little pricey, but you get what you pay for here!
There is no question that I chose the best rear sight to use on my Rock River A4 upper.It works perfectly. Easy to install. Delivery was as promised.
Answer: yes