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

Input:
Question: Has anyone combined this with the Sightmark 3x or 7x magnifiers?  If so, do they line up sufficiently?
Document: I have this on a 9mm AR and it has held up very well, has great clarity if you don't try to make it too bright for the actual ambient lighting conditions. It was easy to adjust to line it up with my co-witness iron sights and it has held zero. I liked it so well that I bought a Sightmark hooded Ultra-Shot for .223 rifle, which I'm just as happy with.
i recently tried out a 7x magnifier by sightmark and it makes it easily possible for the longs shots i was hitting well over 600yrds pretty easy and it will be the next purchase. Overall this sight easily competes with the high price sights out there being aimpoint or eotech for muchless. and if your not a competitive shooter or law enforcment dont waste your money. I give sightmark an A++ for a nicely built easy to use and dead accurate piece!
This sight is as good as counterparts that are in the hundreds of dollars. Easy to use, easy to sight in and holds true zero, basically everything you need in a quick acquisition sight and at a price anyone can afford.
I got a great price on this item but am not totally happy with it. It has a bit of a double image. I have looked and looked and can not find anyone else with this probem. The price is so low and I like everything else about it I'm going to buy another and hope for the best.
my experience with other sightmark products has been the same.horrible product and horrible customer service.
the seller also is a horrible business that does not deserve your money.read my other review on a sightmark amplifier and my experience with the seller...
Great product for the price. Very accurate. Great for target practice and plinking. Made by a very reliable company. Nice job, SightMark.
I purchased this sight today and placed it on a Beretta Neos .22LR. Its a great little sight and operates flawlessly! I would definitely recommend this sight to a friend and will purchase from Sightmark again in the future :-)
This is a really well made item, the only problem is that in the bright desert sunlight the reticle needs to be twice as bright on the highest setting as it right now. If Sightmark ever corrects that problem I will definitely buy this item..
I researched Sightmark before ordering and they had excellent reviews. I was disappointed with this sight. I spent forty rounds trying to sight my rifle and never could. Finally the reticle started jumping between reticles after each shot. Sometimes the image was only half a reticle.
Answer: yes