A couple of months ago, I got to play with a pre-production version of Lead & Steel’s latest enclosed red dot, the Pandora PB-3. With a 21x17mm window, the Pandora has one of the largest enclosed dot windows. Going faster is always easier with a larger window red dot, and while the Pandora isn’t the largest, it is large for an enclosed dot since those tend to be on the smaller side of things.