After buying a mech, I wanted to sell some weapons since the artemis upgrade had removed my LRM20s, which the documentation didn't make obvious (I guess it was too heavy or something). When I readded things, it weighed more and had to downsize my large pulse lasers to regular ER large lasers. Here I discovered that there doesn't appear to be a way to sell weapons within the mechlab. Leaving the mechlab to go into the inventory screen results in you losing your work, and can be annoying because I have to keep track of how much money I need.
Edited by JimboFBX, 10 August 2015 - 11:41 PM.