Does anyone know if there is a complete list of all lvl 45 enhanced/silenced guns?  I often farm out a lot of guns and just sell them, as it can be tedious checking to see if I still have them.

So far as I know, there is not.  Although it shouldn't be hard to put one together.

A PM to Rarebit could solve this problem, or maybe even Mathalos. He came up with this and I'm not sure how.

Vesuveus wrote:

He came up with this and I'm not sure how.

We knew some information from Rarebit beforehand.  After that it was a matter of filling in blanks.