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HOLOSUN 503CU MRS Solar Red Dot Optic


Product Description

The HS503CU is a new micro red dot optic equipped with a 65 MOA circle dot reticle with the option of switching to a 2MOA dot only. Holosun's highly efficient light emitting diodes and solar panels allow Holosun solar optics to run without a battery in many lighting conditions. Additionally, the back-up battery lasts up to 5-years on the dot and up to 2 years on the circle dot. The "U" signifies a housing design that shrouds the windage and elevation turrets on two sides


  • 2 MOA on dot and 65 MOA ring
  • Parallax-free
  • Unaffected by extreme weather conditions
  • Durable construction
  • Battery and solar power
  • Fits 1913 Picatinny Rail
  • Includes low mount and 1/3 co-witness mount
  • Shake-awake Feature
  • Multiple Reticle Options

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Product Reviews

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  1. M&P 15-23 4 Star Review

    Posted by on Feb 22nd 2021

    These sites are the perfect size and quality for the 15-22
    The set up is very familiar to that of an M4 with an Eotech making them a awesome/less expensive alternative
    If you’re training a new shooter or just looking to put rounds down range at a more affordable cost I highly recommend this setup
    Thanks MI-Tac for your outstanding customer service and expertise in assisting with this