First Focus Plane(FFP): FFP scopes place the reticle in front of the erector. They are more specifically designed for tactical shooters and hunters where the distance to target changes and is often unknown. With an FFP reticle, the size of the reticle will appear to change as the scope’s magnification is changed. And it helps with calculating bullet drop and wind calls.SpecificationsMagnification: 6-24xObjective Lens Dia: 50mmTube Dia.: 30mmOcular Lens Dia: 39mmReticle: Etched glass VPA-MF reticleExit Pupil: 8.33mm @6x/ 2.08mm @24xField of View: 17.1 feet @ 100 yards(6x), 4.5 feet @ 100 yards(24x)Eye Relief: 100mm (4inch)Click Value: 1/10 MILElevation Range: 17.5 MIL(60 MOA)Windage Range: 17.5 MIL(60 MOA)Side Focus: 10, 15, 20, 25, 30, 40, 50, 60, 75, 100, 150, 300 yards to infinityLength: 360mm(14.2 inch)Weight: 700g(24.7oz)Optics Coating: Fully-multi coatedFeatured Description5 years warranty30mm Monotube.4 inch Long Eye Relief. 1/10 MIL low profile turret windage and elevation adjustments for fine-tuning accuracy. Etched VPA-MF reticle.Crystal clear fully coated lens for excellent light transmission and the best clarity.Turret with re-zero feature: after zero set, remove the turret and put zero postion.Completely seeled and nitrogen filled for waterproof, fogproof and shockproof performance.Shock tested to 1000g.High quality 6061 T6 aircraft grade aluminum alloy with durable black matte finish.Designed for middle range shootingDiopter adjustment at ocular lens (diopter compensation -3 to +2)Package List:- 1 x Riflescope- 2 x 30mm Tactical Mark Weaver Mount Ring (default) or Dovetail Mount Ring (on request only)- 2 x Rubber Lens Cover- 1 x honeycomb sunshade- 1 x cleaning cloth