Affiliate Marketing Secrets

ok so i use this site which is like a craigslist fore guns i have used it before and had no problem with it but theirs always a lingering threat of being robbed or scammed because you never know who your buying from and i think this might be a scam or something i don’t know it just seems fishy he is selling a semi auto chinese SKS three 30 round magazines 100 bullets and ten 10 round clips all for only $500 and i’m thinking of buying it but it seams fishy because every other sks is $1500 just for the gun by itself i need advise :/ and as i said before it is a pretty trusty site and the only “problem” i had was wen i was selling a pistol and when i got to the buyers house it was a 13 year old kid