Marlin Model 300-A 4x .22 Scope. 7/8". c.1972-77. New in Box, Crosshair - Refurbished.

Specifications
Power: 4x
Field of View: 21ft
Tube Diameter: 7/8”
Eyepiece Diameter: 1.035”
Front End Diameter: 1”
Eye Distance: 2”
Length: 11 3/4”
Weight: 9 oz.
Adjustments: 1/2” click
Mountable tube span: 7 inches
Construction: Anodized Aluminum