Index Matched Lens System for the highest levels of light transmission and the brightest sight picture possible .
M3 dials have 1/2-MOA windage dials and 1-MOA elevation dials .
Audible, tactile clicks let you adjust with extreme precision .
30mm maintubes for increased windage and elevation adjustment .
Finger-adjustable, knurled windage and elevation adjustment bullet drop compensation marked M3 dials .
Butler Creek Flip-Open Lens Covers come standard with all Mark 4 LR/T riflescopes .
Length :350mm
Eyepiece Length (in):  3.2
Objective Length (in):  4.30
 Diameter :45mm
Tube Diameter:  30mm
Weight (Gram):879 (With Box)
Eye Relief (in):  4.7(3.5x) 3.4(10x)
Eye Relief (mm):  119(3.5x) 93(10x)