I have a Helwan, the Egyptian made 1951.
Yes, the front sight is tiny but it is milled as a part of the slide. It can’t be easily changed.
The rear sight is a smaller drift adjustable one, plain black with a shallow notch.
You really have limited options to improve the sight picture.
On the cheap: Using a toothpick, paint the front sight with white Testors model paint, let thoroughly dry, then repaint over the white with blaze orange. It’ll pop a heck of a lot more than the plain one.
I did that exact treatment on my LCP/LCP II, LC9, some of my fixed sight revolvers, etc.
Not cheap: You can pay a custom ‘Smith to grind down the front and dovetail in a new sight blade. Then he’ll probably have to make a new rear sight to match the front and remill the rear sight dovetail to match.
Or you can shoot it as is, understanding that almost all of these 70 plus year old battle pistols have rudimentary sights (Colts, FN, Luger’s, Mausers, Etc.). I find them tough to use, too. I guess folks just had better peepers back then
.
Stay safe.