As a result, you now have seven extra days to unlock the event’s limited-time rewards. Remember, once the Anniversary Collection Event ends, those rewards could very well be gone for good. Respawn has brought back certain weapon and character skins from past limited-time events in subsequent events, but not every one.
Unlocking all 24 rare and legendary rewards in the Anniversary Collection Event will automatically give you 150 Heirloom Shards. That’s enough to unlock any character heirloom you want–heirlooms are the hardest to acquire cosmetic items in Apex Legends. The only other way to unlock 150 Heirloom Shards is to open 500 Apex Packs, which requires you to spend either a lot of money or time.