Drops from: ?
Refine one A.R.C. Tier 3 Limited Weapon Voucher (0.01 PED) with ? Iridium Ingots (? PED).
You will receive one A.R.C. Tier 3 Limited Weapon Cube (? PED) back.
Have the A.R.C. Tier 3 Limited Weapon Cube in your inventory and ? A.R.C. Faction Badges and go to The Hub.
Take the A.R.C. Faction Stage 3 Teleporter.
Go to the A.R.C. Faction Terminal.
Find the Ecotron V.42e (L) in the terminal select it and click buy.
Drag the limited weapon cube into the window. Once text changes to green select the checkmark.
Gun Acquired!