I have a cheap Bushnell dusk to dawn 1.5 x 7 on my 870. It came on a used ML I bought several years ago. I used it 3 years before removing it cause the field had the muzzle of the front stuffer in it.
I bought a pair of bushnell banner 3x9 BDC scopes way back in the the 1960's. One is mounted on my 308 cal Remington 700 still works great today. the blank ring is the cats meow when useing reloads cause you can mark the dial to suit the load.
The scond one was put on a 243Cal Remington 700 again it is the cats meow for the reloads and shooting. Shoot several humndred yards across cramberry bogs at coyotes and then shorter yardage at whitetail deer and inbetween at crows.
Hard to beat the Bushnel for the price.
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Al