Ultimate Arms Gear M1 M-1 Carbine .30 Cal Rifle 2-7x32 Scope + Rail Mount + Scope Rings + Lens Covers + Lens Cleaning Kit MAGNIFICATION-2x-7x ADJUSTABLE OBJECTIVE DIAMETER- 32mm, TUBE DIAMETER. : 1" FIELD OF VIEW @ 100 YRS ( FEET ) : 14-4.5 /// CLICK VALUE@100 YARDS-1/4" EYE RELIEF ( INCH ) : 2.56-2.95 EXIT PUPIL ( MM ) : 16-4.6