Prime Vault

The Prime Vault, an archive outside of Tenno reach, houses gears that have been retired from Warframe's drop table. "A gear enters the Prime Vault" means that players are no longer able to obtain new copies of the gear from the game. Preexisting copies of the gears can remain in players' inventory and can be traded. Below are the official FAQs:

Q: Will my inventory blueprints be removed too?!

A: Nope. Anything in your Inventory/Foundry after the removal will stay.

Q: Are these parts gone forever?!

A: Nope. Items in the Prime Vault have the chance to come back at a later date.

Q: Can I still trade these parts after the removal??

A: Yes you can!

Upcoming Gears Scheduled to Retire

 * Mag/Prime
 * Boar Prime
 * Dakra Prime

Current Retired Gears in Prime Vault

 * Frost/Prime
 * Latron Prime
 * Reaper Prime

Reference

 * LAST CHANCE FOR FROST PRIME PARTS IN THE VOID
 * LAST CHANCE FOR MAG PRIME PARTS IN THE VOID!