U.S. Optics

U.S. Optics FDN-25X Rifle Scope 5-25x52mm ER3K Elevation Turret FFP Illuminated HORUS H102 Reticle

Rifle Scope by U.S. Optics

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U.S. Optics FDN-25X

Built to meet the demands of professional precision shooters, the FDN 25X offers everything a shooters needs to push their rifle’s limits. The FDN 25X features a reengineered optical system to guarantee the sharpest image resolution possible throughout the 5-25 magnification range. Target acquisition for accurate shots beyond 2,000 yards is facilitated by the rapid adjustable 180° magnification throw. The ER3K elevation knob provides the shooter with the ability to perform eleven mils of correction per one revolution. The FDN 25X 5-25X features a 52mm objective, 6061-T6 aluminum 34mm tube, low-profile ER3K elevation knob with a zero stop, ergonomic capped US#1 windage knob, integrated illumination and parallax knob, rapid adjustable 180° magnification throw, and customization options that will undoubtedly meet your needs.

SKU: FDN-25X H102


  • Finish: Matte Black
  • Waterproof: Yes
  • Weight: 34.4 Ounce
  • Tube Diameter: 34mm
  • Power Variability: Variable
  • Minimum Power: 5
  • Maximum Power: 25
  • Adjustment Click Value: 1/10 MIL
  • Adjustment Type: Click
  • Exposed Turrets: Yes
  • Finger Adjustable Turrets: Yes
  • Turrets Resettable to Zero: Yes
  • Zero Stop: Yes
  • Turret Height: High
  • Fast Focus Eye Piece: Yes
  • Lens Coating: Fully Multi-Coated
  • Rings Included: No
  • Reticle: HORUS H102
  • Reticle Construction: Glass Etched
  • Illuminated Reticle: Yes
  • Holdover Reticle: No
  • Reticle Focal Plane Location: First Focal Plane
  • Parallax Adjustment: Side Focus
  • Fog Proof: Yes
  • Shock Proof: Yes
  • Overall Length: 17.93 Inches
  • Objective Lens Diameter: 52 Millimeter
  • Country of Origin: United States of America