They didn't make rifle scopes, like most brands, they had someone else make them. And they were so successful that now they don't anymore.
I have a 1.5-6x40 Echo. Glass-etched reticle, very impressive clarity for the price, didn't last long on a Handi-Rifle in .308Winchester. Somewhere in the second box of ammo it wouldn't focus at higher than minimum magnification. Lifetime warranty means Brunton says I can send it to them and they will try to fix it but if they can't there are no replacements and they will give me a credit note towards anything else they sell. (They don't happen to sell anything else I want.)