NightForce NX8 Rifle Scope 2.5-20X50mm 30mm Tube First Focal Plane F1 ZeroStop .1 Mil-Radian DigIllum TReMoR3 Reticle Black Full-Size. These Rifle Scopes from the pioneers at NightForce feature a standard Power Throw Lever (PTL) that is expertly designed to rapidly change between magnifications for the perfect shot every time. With a digillum illumination the NightForce 2.5-20x50mm Scope for a brighter crisper and clearer view. Blow the competition out of the water with the one-of-a-kind NightForce F1 Rifle Scope. Specifications for NightForce NX8 Rifle Scope 2.5-20x50mm 30mm Tube First Focal Plane: Manufacturer: NightForce Objective Lens Diameter: 50 mm Magnification: 2.5 - 20 x Tube Diameter: 30 mm Reticle Focal Plane: First Focal Plane (FFP) Exit Pupil: 2.5 - 7.1 mm Illumination Color: Red Field of View Linear: 41.5 - 6.8 ft at 100 yds Eye Relief: 87.5 mm Weight: 28.3 oz Length: 12 in Parallax: 11 yds to infinity Illumination Type: Digillum Fabric/Material: Aluminum Magnification Type: Variable Features of NightForce NX8 Rifle Scope 2.5-20x50mm 30mm Tube First Focal Plane: Zerostop Digillum PTL Package Contents: NightForce NX8 Rifle Scope 2.5-20x50mm 30mm Tube First Focal Plane NightForce C631: NX8 Rifle Scope 2.5-20X50mm 30mm Tube First Focal Plane F1 ZeroStop .1 Mil-Radian DigIllum TReMoR3 Reticle Black Full-Size