I had, some many years ago, happened upon an aimpoint scope that I'm gonna guess was the original design.
it was about 5.5" long, 3/4" tube, and 1/2" inside tube. 1x with an ultra fine dot, that when turned up, it was about 1/2 pie plate at 100m, but turned down to just able to see it levels, and it was about 1" at 100m.
I wish I had it back for my .223SL.
I traded it for something, I no longer have.... probably drank it, or sumpin!
I then bought a ProPoint.... not even 1/4 the quality of that old aimpoint.