Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: What is the country of origin/ manufacture?
Document: these Back Up Iron Sights are a worthwhile buy, mount right onto your rifle for ease of use push the buttons and BAM! your aiming down range with these puppies... a little bulky for my taste but when you buy a rifle that's a flat top ready for optics these are a top notch but for any situation, with that being said I gave them a 4 out of 5 due to the bulkiness
put it on the top rail of my Hi Point 4595.  it's not completed lined up with the barrel, most likely due to the design of the rifle and not the sights.Easy to use and adjust. first range session I was making 2 inch groups at 15 yards. One time at 25 yards, I two shots in a nickel sized group.will see if they hold zero.
it fits perfect. i was thinking it might not meet my expectation but it did. will recommend this to all my shooting buddies.
Works great for a left  hander or right hander. Just rotate the riffle some to use these back up sights.
Works as expected and can't beat the price. The only reason its a four star is the button on the rear flip up is pretty stiff seam like it will get better over time.
Well worth it tho.......
Well made and mount out of the way of the scope.Ilike the flip up option and it works very well.
Wasn't the item I ordered, made in china, What I ordered was supposed to have been in Eroupe! Very disappointed
Though both sights lock positively in the up or down position, the rear aperture is floppy and does not stay locked on either sight hole. After the rear is raised and after each shot, I need to set the aperture in place. The concept is sound but the construction is shoddy. Guess a tack weld from the sparkle wrench will keep the aperture in place but I sure wish I didn't have to weld on it to get it stay put.
They have some play when flipped up and cannot be flipped down on my LAR 308 do to the hand guard in the way. Shouldve went with the fixed position but not bad for the price.
Answer: no