This is from the bottom of a single hung Alenco window.
The part pictured (#2) is the broken one I am looking to replace.
It appears to be a softer zinc material measuring 1/4" wide x 3/16" high.
Slides into the channel at the bottom of the window. Sets with a screw.
I'm sure I'll be looking for some sashes as well as I discover more issues with these windows.
Appreciate any assistance you can provide.
Thank you
Dave