Is there a way to get a free heirloom in Apex?

I'm curious, is there any legitimate way to obtain a free heirloom in Apex Legends? I've heard rumors about some players managing to snag one without having to spend real money, but I'm not sure if that's just hearsay or if there's actually a method to the madness. Can you shed some light on this for me? I'm especially interested in knowing if there are any in-game events, challenges, or achievements that could potentially reward a player with a heirloom. Thanks in advance for your help!