I realise alot of people dont need this because they play this game ALOT. I however play when i can. And dont have or acquire alot of engrams for enough weapon parts or armor materials When i do get any. I use them instantly on stuff that ive been waiting to lvl up or upgrade. So rather than grinding for engrams specifically. Since we already grind weekly and daily for legendary marks. Why not just have the option for such a thing? LM for armor mats LM for weapon parts Edit: yes sounds like weapon parts in exchange for glimmer. Sorry but i would still rather have the option for legendary marks. I like my glimmer. That still dissappears fast too!