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First Look: U.S. Optics Foundation Series Riflescopes

First Look: U.S. Optics Foundation Series Riflescopes

U.S. Optics is releasing a new flagship variable-power riflescope line, the Foundation Series. Built in the U.S.A., the Foundation Series will replace the current line of B-series optics. The new optics line continues U.S. Optics' reputation of reliability, durability and performance. All Foundation Series models will be available in Q1 2020 direct from the U.S. Optics website and also through U.S. Optics’ national distributor and dealer network. All current B-Series sales orders are eligible for a free upgrade to the equivalent Foundation Series model. 

“We’re incredibly excited to release a new optics series that defines the core of US Optics’ mission, our Foundation: smart & intuitive design, unparalleled quality & durability and commitment to domestic manufacturing,” says U.S. Optics President, Pat Harrigan. “As we continue to build upon the legacy and drive the future of U.S. Optics, we will do so upon a Foundation that sets a standard our Company and our Customers will be proud of.”

The Foundation Series incorporates and improves upon core components that U.S. Optics has developed, proven and popularized in over 29 years of optics industry leadership. The Foundation Series is machined from aircraft grade 6061-T6 aluminum and features a low-profile ER3K elevation knob with a Zero Stop, capped US #1 windage knob, adjustable integrated parallax and illumination knob, rapid adjustable 180-degree magnification throw and customizable options to easily meet the needs of every end-user.


  • Durable, Dependable and Ergonomic ER3K Elevation Knob with Zero Stop
  • Double Stacked 1/10 MIL or ¼ IPHY marks for use across first and second revolutions
  • Redesigned Capped US #1 Windage Knob
  • 34 mm tube across the entire Foundation Series line
  • Compact turret section for compatibility with commonly used mounts
  • Integrated Parallax and Push-Button Illumination Control
  • Type III Black Hard Anodized Finished or Customizable Cerakote Finish
  • Waterproof and Shockproof
  • 180-degree Magnification Throw

Models in the Foundations Series include: the
FDN FX10 10x42 mm, with an MSRP of $1,999, the FDN 10X 1.8-10x42 mm with an MSRP of $2,499 and the FDN 17X 3.2-17x50 mm, with an MSRP of $2,899. The FDN 25X 5-25x52 mm model has an MSRP of $3,449 and completes the current offerings in the Foundation Series. 

More information on the Foundation Series from U.S. Optics  is available at usoptics.com.

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