Excellent! You might try the Marine Corps blade front sight. It's 1/10" wide. Repros pop up now and again, or simply make one. Another alternative is a blade with a bead on it. They were made by Lyman in the past and turn up on eBay now and again.

"You can lead a man to logic, but you cannot make him think." Joe Harz
"Always certain, often right." Keith McCafferty