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Review: DI Optical FC1 Prismatic Red Dot Sight

By on November 22, 2016

We recently got the chance to check out and review the FC1 Prism optic from DI Optical. Our first impression after pulling this optic out of the box is how well it is built. The FC1 is in a rugged case CNC machined from a solid block of 6061-T6 aircraft grade aluminum. The optic is very light, weighing it at only 6ozs.

Field of View: The Field of View is very impressive. Due to the short length and large lenses, you get a massive field of view. The lens dimensions are 15mm x 21mm

Clarity (My Favorite Part): The reason we were most interested in the FC1 was due to the fact they DI uses a prism rather than a curved lens. I have a small astigmatism in my left eye, and normally when shooting red dots, the dot becomes fuzzy. With the FC1 and the prism, there is no distortion. The view is crystal clear.

Dot/Brightness: The dot is 2 MOA, you can dial it down to make it nice and small for a more precise dot, or you can dial it up higher, and the brightness makes it seem a little bigger

Battery Life: The battery life is Approx. 5000 Hrs (Mid Brightness Level)

Price: At the time of this article the FC1 sells for $423.00 with Free Shipping on Amazon sold by DI Optical themselves. Or $441.00 on Optics Planet.

The FC1 is very impressive; The QD mount makes it very easy to swap firearms. The single, easy to use push button selects between seven daytime and seven night vision compatible modes. Head over to their website the link is below and check out their products. They make some very nice optics.

Unique Features

  • Virtually Parallax free prism optical system with a clear, compact lens
  • Excellent size for carbines, sub-machine guns, and shotguns
  • Single button LED brightness control
  • Compact and rugged CNC machined aluminum housing
  • Requires only 1.5 inches of rail space
  • Meets military MIL-STD 810G durability testing standards to insure the highest quality and reliability
  • +/-40 MOA adjustment in both elevation and windage
  • Auto shut off feature: 10 hours if no movement.
  • Removable spacer to suits on low profile guns (Short screw included)

Check out DI Optical USA’s optics here http://diopticalusa.com/

fc1-label-photo trx_dio-f1_9472

About The Survivalist

Total bacon buff. Explorer. Survivalist Expert. Zombie Fanatic/Hunter. Internet Entrepreneur

One Comment

  1. Mclovin

    December 24, 2016 at 9:09 am

    Since it is a Prism optic could the enemy see the reticle from the business end? I have a Burris prism scope and when it is is turned on it might as well be a micro-beacon giving away position to anyone facing it.

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