How to get Akstiletto Prime Blueprint in Warframe?

Akstiletto 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 Akstiletto Prime Blueprint

• Lith A1 (Rare) - Vaulted
• Lith A2 (Rare) - Vaulted
• Neo A1 (Rare) - Vaulted
• Neo A4 (Rare) - Vaulted
• Neo A7 (Rare) - Vaulted