I believe I read that the max level of a weapon able to be sold in any station in Eridani is 3. And that the max drop is probably 4 due to some of the stations using drop tables with level 2 and a 2 level variation.
If this is right then I should not be seeing White Strelka missiles in the shop, or 800F hexagene MAGs, or 600 hexagene mags for that matter. There they are in a Ultimate Weapons shop though right by the Eridani Station.
Just saying.