Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Since mine didn't come with instructions, could someone tell me how to adjust windage & elevation. I ssume it's the two allen screws, but which one does what & how sensitive are adjustments?
Document: Shipping took about two weeks cause it was coming from China. I was surprised at how small it actually is. The whole device, laser and mount, is only about the size of one of those rectangular pink erasers. Installation was super quick and easy, however there were really no instructions on how to adjust the laser, so that took some trial and error. I have this mounted on my We Hi Capa 1911 airsoft pistol and as far as I can tell the blowback doesn't move the sight.
It came in ten days and I really only have one complaint...no instructions. Took me about 20 minutes of playing around to figure out that you could rotate the laser in the mount so that it can be sighted. Sighting was easy once I got that done. I used the threadlock as suggested in one of the other reviews. Fits on my Springfield XD40 perfectly.
A very compact and easy to operate Laser pointer scope. Works on 3 LR44 button cells. Made of metal throughout and pretty good finishing. Product does come in a compact hard case with allen keys for adjustment. You can actually zero this pointer with the adjustment screws. The light is bright even in daylight and when I attached it to a blowgun it saves the time taken to aim. Good to about 20 metres, have not tried anything beyond.
The product description mentions guns but the packaging only mentions bows. It's very cheaply made and I'm not sure it would handle recoil well. It's basically just a laser pointer with a rail mount. Luckily I only bought it to practice technique and see how grip affects aim. It works just fine for that. Be sure to loosen up the mount and rotate the laser so the windage and elevation screws actually move the laser along the axis instead of diagonal.
Bought this laser for use with my S&W; 9mm. Product arrived much faster than I expected, in 6 days, shipped from China. It came with three batteries and two Allen wrenches packed in a hard plastic case. However no instructions were included.Extremely easy to load and slide on the gun. Laser can be adjusted by turning the knurled body of laser with thumb and forefinger. Changed it out to my S&W; MP 45 and also fit perfectly.
Easy to zero, works great. the windage screws seem to be sort of loose, but if it changes with shooting I may zero it with lock tight on the screws.
The laser is made with good materials but it does not keep the aim after you adjust elevation. after a few rounds on my 22 it gets all off target.
This laser is awesome! I mounted it onto my Airsoft H&K P30 Pistol&#8230; and it is accurate. I was able to adjust the beam with the Allen wrenches that came with it, and after targeting some targets&#8230; I am with in .025&#8221; (1/8&#8221;) off the mark, from 40 feet from target. SWEET!
I was able to nail some pop cans from about 30 feet away with no problems. The set screws to adjust the laser do turn extremely easily and with almost no resistance, so I can see how putting this on an actual firearm would jiggle the sight off zero. But for an airsoft pistol this works extremely well and is small enough that it doesn't add any extra weight. The on/off toggle button is very easy to press and I can use my trigger finger to quickly turn the laser on and off.
Says it fits pistols and rifles but it fit none of the 10 rifles I have or any of my 18 pistols and none of my 8 shotguns. Now that's a lot of what it don't fit. Thought out of so many this thing would fit one. Gave it 2 stars only because it actually works. Maybe it fits Chinese guns but mine are mostly American.
Answer: yes