How to get Fragor Prime Blueprint in Warframe?

Fragor Prime Blueprint is an item dropped from Void relics.
You can find the list of relics below, and click on the links to see how to get them.

Relics dropping Fragor Prime Blueprint

• Lith F1 (Rare) - Vaulted
• Meso F1 (Rare) - Vaulted
• Meso H1 (Uncommon) - Vaulted
• Neo S8 (Uncommon) - Vaulted
• Axi A7 (Uncommon) - Vaulted
• Axi F1 (Rare) - Vaulted