NIKON Monarch 4-16x50 Obj 25.2-6.3 ft @

Nikon's MONARCH 3 Riflescope with BDC Distance Lock function has an optical system located in the first focal plane, which allows the riflescope to maintain its scale and distance proportion on a target throughout the entire zoom range. The greatest benefit of these BDC Distance Lock-equipped riflescopes will be for those who use Nikon s Spot On Ballistic Program and BDC reticles to compensate for bullet drop at extended ranges.