( SCOPE DETAILS ) Material: Aluminum, Color: Matte black, Magnification: 4x, Series: Compact Optics, Effective Objective Diameter: 32mm, Adjustment Graduation: 1/4" MOA, Reticle: Range estimating reticle, Objective Diameter: 32mm, Rifle Exit Pupil: 8mm, Eye Relief: 3", Length: 7.75 in, Maximum Field of VIew (feet at 100 yds.): 36.6, With a 4x magnification in this scope, you can clearly view the object from a long distance and shoot accurately, Multi coated lenses reduces light reflections, enabling better light transmission for good visibility, The exterior black matte finish on this compact rifle scope offers a smooth and stylish look, Includes a set of matching matte black color Aluminum scope rings mounts - ( MOUNT DETAILS ) Includes a set of aluminum scope rings mounts, Simple bolt-on installation - Note there are many different variations of Marlin rifles. Not all of them are equipped with the 3/8" dovetail grooves. Please make sure to inspect your rifle to ensure that it has 3/8" dovetail grooves along the top which are necessary for installation of this kit.