Also known as the Weapons Auction.
It is restricted to certain events and therefore, not a permanent feature.
There are two rows which separate the highly rare (in demand, event-exclusive or both) weapons and the more common weapons (craftable, obtainable from decoders or both). A player has two choices, which is to either bid on a weapon or make a buyout.
By placing a bid on the weapon, the player commits to the current bid price, along with a 20 mileage increment. For example, if the current bid is at 3,300 mileage, the player has to pay 3,320 mileage to outbid the previous bidder.
The timer increases whenever a bid is placed. Should someone outbid one's current offer, he or she is offered the option to pay additional mileage or wait until the auction ends and collect back the mileage.
An alternate measure is to buyout. When this happens, the auction ends immediately and the weapon goes straight to the purchaser at the expense of more mileage.
A cooldown of 10 seconds is imposed whenever the current listings are cycled.
Likewise, players have the choice of listing their starting bid, and the buyout price. Only permanent weapons are listable, and once the weapon has been "released", a 20-minutes countdown begins. Only one item per listing and it is not retractable during that time.
If the weapon fails to sell (marked with a red tag), the player is allowed to re-list it. Once it's sold (marked with a blue tag), he or she could then collect the mileage paid by the buyer.