The way I understand most warranties is that they will cover failures/breakages from normal wear, under normal circumstances. That said, I don't see how they would cover a missing part, just I as I would NOT expect them to replace a magazine or slide if I lost them. YMMV, but as suggested on the board, call and ask them directly. No one here can answer for them as we do not represent them. They appear to be a standup company (thankfully I have not had to find out myself) and will stand by the weapon and try to make you happy (within reason).I can't find the part online anywhere to order and replace myself and was wondering if SA will fix this under warranty.