okay, I'm gonna summarize what people seem to be saying, so that this can die.
Noobs,
trolls, etc.: OMG, AMAZING WEAPONS!!!!!!!1!!!!!!!

most others: This is stolen! rykuta sux!!!
people with problems: "it won't work!" OR "It breaks -insert mod here-"
Solution: open zip, extract. then: get rid of any other mod you happen to have that has any sort of generic firearms.
-OR-
just don't use these.
so can we let this die now?