Are the AT4050ST and AKG 414 roughly about the same size?
It looks like they are close but the 4050ST is more of a cylindrical shape. The 4050ST is listed as 53.4mm max diameter. The 414 is listed at 50mm x 38mm.
Thanks for the suggestions! I'll look into them.
Edit: Per Justin at Pro-Sound, the Rycote 45/100 Foam windscreen (104422) and its companion Mini Windjammer (055428) will work for this mic.