Looking in vain, so far, for a USMC cover with a bigger hood. The bigger hood lets you leave it on during firing so it acts like a shade for the front sight. Might be more trouble than it is worth though during the Springfield Match, when I was videoing MSgt. Julia Watson, she was firing a borrowed 1903A3 that had one. That was the first one I had ever seen in my life.
You might notice I have the really big thick front sight blade manufactured by a friend of mine in Austin, Texas. Makes it much easier to see and is a great improvement over the issued sight blade.
Won the Texas State Rifle Association 1903 Springfield Championship with this rifle last year at Terrell. First time ever. Usually shoot pretty well with it at Camp Perry. Shot a couple of doetags with it as well.