I have the patridge front sight blade. They're no longer available, officially, through FA
Pretty sure they were used on the 353s and similar models that were silhouette oriented. I used to have a 10" 252, now sold, that had the comp rear and hooded front sight.
That front sight hood accommodated a much smaller front sight post.
I'm certain that hood would not fit your patridge, esp as your sight height looks like a .480 --which is typical 6". Just too tall
Of course you could always get the hooded site from FA, but that kinda goes without saying I guess