Crosman 1322 Rear sight Options

Archer Airguns has a Industry Standard brand rear sight The picture on their web site looks good but I am skeptical since it only cost $16. I have shot a bunch of Metallic Silhouette pistol competition and open sights was my favorite, most of my pistols have Bomar sights on them. I have been thinking about fitting a set of Bomar sights on one of my 1322 pistols but these are expensive sights more than what the pistol costs. I am not sure their is a cheap option and I have done a little research myself because the factory sights are terrible.

Mike