http://tarantacticalinnovations.com/the-store/shotgun/new-category/
[h=1]TTI Trigger Guard Pin Spring C-Clip 5-Pack[/h]
They look different but work just as well.
https://www.midwestgunworks.com/page/mgwi/prod/70019
ahhh sold out, ill keep looking for you...
SD probably has at least two of them in his spare bin....you could ask him..