With advice from SKB and Kutter, on this forum, I made this front sight. I cut the steel blade to the rough dimensions, then added brass using a brazing rod and torch. Finally, I worked it down to final dimensions and polishing. I'm happy with how it turned out, and I greatly appreciate the advice from SKB and Kutter! (This is my first time posting a photograph on the forum, so fingers crossed it works as correctly.)
(I just tried another approach to posting the photo. Hopefully it works this time)