Best place to sell weapon mods?

The best mid-high level seller locations tend to be Lion's Arch, Droknar's Forge, and Kaineng Center District-1.

General rule of thumb: the higher you price your product, the slower it will sell if demand is low. If you are selling an item close to average market price, most people won't buy immediately, since almost everyone impulse-buys only if he/she thinks she is getting a good deal.

My recommendation: If you want to move your goods faster, you must be ready to sell below market price by at least 1k-5k. I managed to move lots of old stuff during the last few days with this sales mentality, and the platinum gained quickly netted me more useful gear Yes, you can be patient and hold onto goods until higher offers come, but while you are spamming to sell items for your expected asking price, that is time being spent away from higher profit farming or executing elite missions (where the higher profit goods drop).

pretty much what he said, also if ur mods r junk nobodys gonna buy them, honestly these days if its not perfect or close to perfect its not worth selling...