Vanguard M1 Relic content

The Vanguard M1 Relic contains the following Prime components and blueprints:

Ember Prime Neuroptics Blueprint	Ash Prime Chassis Blueprint	Caliban Prime Blueprint
Volt Prime Systems Blueprint	Protea Prime Chassis Blueprint	Mesa Prime Neuroptics Blueprint

Vanguard M1 Relic: Drop sources, locations, and probabilities

The Vanguard M1 Relic Relic is vaulted and doesn't drop in any mission currently.
However, players can still trade it or its contents.

Other items:
Rhino Vanguard Helmet Blueprint