How to get Stradavar Prime Blueprint in Warframe?

Stradavar 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 Stradavar Prime Blueprint

• Lith S10 (Rare) - Vaulted
• Lith S13 (Rare) - Vaulted
• Lith S8 (Rare) - Vaulted
• Neo S11 (Rare) - Vaulted
• Neo S12 (Rare) - Vaulted
• Neo S14 (Rare) - Vaulted