back in the early 80's i got a oak shore electronics micro dot scope in 1.5x4.5 power with the small red dot in the center of the cross hairs. i love this unit and have had good luck with it . i would like to buy a new one for a friends slug gun but can't find the company. can anyone tell me if they are still around or is there a scope made now that has this power and the red dot that will hold up to the slugs.