Nikon MONARCH3 4-16X50SF FFP Matte
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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.