Simple supply and demand economics. There is almost no demand for the gun so you lose a profit from making it. You claimed to have an offer when you posted yet you still haven't sold the gun in over a month, good try but it simply isn't worth what you are suggesting and not really even worth the offer you supposedly have on it. This is why there are are so few perfect and almost perfect guns going around because not many people play sairs and want to invest a lot into them only to lose a huge profit later on.
Its 2 or 3 less attack for a perfect one? Since i remember someone at my buddy list have looking for a revolver like 1 week ago
im afraid near-perfect weapons are impossible to sell as people who can afford high tier gear will usually just farm out a couple more bil to get a perfect weapon.