How to get Acceltra Prime Barrel in Warframe?

Acceltra 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 Acceltra Prime Barrel

• Lith A11 (Rare) - Vaulted
• Meso A5 (Rare) - Vaulted
• Neo A12 (Rare) - Vaulted
• Neo A13 (Rare) - Vaulted
• Neo A14 (Rare) - Vaulted
• Neo A15 (Rare) - Vaulted