I've read a few reviews and spec sheets and some have said the frame of the Galaxy S5 Active is aluminum some say it's...

Hey Chad I tried to answer and direct you to a place where I found parts but it was flagged because of the link , anyway the part of the camera your talking about is part of the rear housing , try Global Direct parts , good luck .

Probably too late for ya ' I just got my S5 Active , but anyway , if your talking about the outer camera lens it's part of the rear housing , I found one here -> http://www.globaldirectparts.com/OEM-Samsung-GS5-Active-G870A-Rear-Housing-Gray-p/smg870ahsg2gry.htm