How do i find a stock ringtone from my old phone? LE LEON LTE metropcs

[AC Question]

I recently had an LG Leon LTE with metropcs, and it broke! my girlfriend has the best ringtone, and when i got my new Galaxy Core prime TDLTE, there are all different ring tones and no good ones for my gf! I found some lolipop 5 stock ringtones and wallpapers from a site online, but they werent the right ones. I really want it back and I have no idea how to get it. Can you guys help? Thanks a ton!