Guess weapons

Shlesnulsya recently with one Internet expert in weapons. I was able to prevail upon him to a small quiz like "Guess the weapon." Fortunately, he was fully confident of victory. But after a few pictures of his confidence diminished. The fact that these pictures really taken from the Internet. but they change the background (and even on two superimposed noise), googol but because they do not determine the true. Generally from 8 pictures he guessed only one.
I have no doubt that on Yap are real specialists in arms. I'm only interested in how quickly you will be able to identify them?
Will 8 pictures.





2 picture



3 picture



4 picture



5 image



6 picture



7 picture



8 picture



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