How to get Pyrana Prime Barrel in Warframe?

Pyrana Prime Barrel 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 Pyrana Prime Barrel

• Lith L2 (Common) - Vaulted
• Lith L3 (Common) - Vaulted
• Meso E2 (Common) - Vaulted
• Meso N7 (Common) - Vaulted
• Neo A2 (Common) - Vaulted
• Neo A9 (Common) - Vaulted
• Neo V7 (Common) - Vaulted
• Axi A8 (Common) - Vaulted
• Axi C4 (Common) - Vaulted