USASupreme is a website with no - zero - transparency as to its ownership or even who is in charge, and most articles have no inpependent source verification noted.
Stick with CNN.
And not surprisingly the "author" of the article has no internet footprint at all. No address, not other web site postings, nothing at all.
When you dig into the supposed Telegram channels you find DPR and LPR militias showing the weapons they captured and gave out to their members. If anybody is selling those weapons it is them.