Hi Cindy
I don't know if you where still looking for the outer bug flap but I thought I would pass along some info just in case.
I just placed an order for bug flap and rubber flocked liner, very reasonably priced. The bug flap I ordered has the same profile as the one I just removed but you do still need to trim the width to size which I prefer so that you can make accommodations for shrinkage. They also have the outer gasket and locking gasket available but I didn't order it. Unfortunately they don't have weep hole covers that fit.
https://www.hitechglazing.com/
WD-11639-Bug Flap - 1-3/8" Wide
AU-1033026-AS1268 Flexible Flocked Lining All-Rubber
Since the bug flap is actually meant for a screen/ storm door another suggestion is to go to a window and door store to see if they have it in stock.
I opted to order it online because with 5 kids I don't have a lot of spare time to run around and it was easier to order it online while I am waiting to pick up kids from various practices.
Good Luck in your search.
Shelley