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Questions & Answers
Would anyone recommend using a magnifier with this sight? If so, any suggestions on a relatively inexpensive one, if possible? Featured Answer

The vortex vmx 3t magnifier is the best budget and quality balanced option and witnesses/works perfectly with this red dot

by MachenWarrior, Verified Owner, September 9, 2018
Will this fit directly on the rail of a CZ Scorpion or do I need to buy a mount? Expert Answer

Both included mounts are compatible with the top picatinny rail on a CZ Scorpion.

by Jonathan D., Gear Expert, July 12, 2018
Customer Reviews
Helpful Positive Review Holosun Paralow HS503C Circle Dot Sight by Chris, August 5, 2018
My first Holosun sight and I am not disappointed. The red dot and circle dot are clear and just what I wanted. Machining quality is excellent of the body and base. I look forward to putting many rounds down range with this sight in PCC.
2/2 found this helpful
Helpful Positive Review Great red dot with clear image by He, December 14, 2018
The optic has a lot of light transmission thru the tube and the reticle is prettty clear .line up perfectly with my buis ! Love this optic . It comes with a bikini cover but just make sure you put the battery in the right way. Which is actually upsid...
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3/3 found this helpful
Helpful Positive Review Holosun red dot by Hot shoe 52, June 16, 2018
Great sight and very clear and clean. The solar is a bonus for day hunting..I’ll definetly buy another for my other builds..! Mounts quickly to your locating rail and locks in place with one set screw.
1/1 found this helpful
Helpful Positive Review Solid Mid-Range RDS by Nine10, July 3, 2018
I purchased this optic several weeks ago, and have it mounted on a 16” Mid-length free floated AR-15. I’ve taken it to the range twice, and dry fire practiced quick target acquisition and snap shots. Total ~400 rounds with the optic attached. One iss...
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3/3 found this helpful
Helpful Positive Review Holosun 503C by Lain, Verified Owner, July 19, 2018
This Holosun is a great value for the money. does everything an Eotech does at half the price!I replaced my Bushnell TRS 25 with this RD, which is only slightly larger, but a little brighter. Glad I did!
1/1 found this helpful
Helpful Positive Review Holosun quality every time! by HyperAdmin, Verified Owner, July 25, 2018
I put this on an AK pistol. it works great and I can still use the iron sights. Best red dot for the price. It works, price is right and as always, Holosun quality every time! I recommend this for close range guns.
1/1 found this helpful
Read All 95 Reviews

Product Discontinued by Manufacturer

Holosun Paralow HS503C Circle Dot Sight has been discontinued by Holosun and is no longer available. Our product experts have helped us select these available replacements below.You can also explore other items in the Red Dot Sights & Accessories, Red Dot Sights yourself to try and find the perfect replacement for you!

Product Info for Holosun Paralow HS503C Circle Dot Sight

The Holosun Paralow Waterproof Circle Red Dot Sight is compact enough and rugged enough to mount on most firearms regardless of size and recoil. These Red Dot Sights by Holosun feature clear, unique dot or circle reticle pattern options. Use solar and battery power to get over 20,000 hours on the circle dot reticle and over 50,000 hours on the single dot, making the Holosun Paralow Solar Circle Red Dot Sight the perfect choice for extended battery life. Constructed of high-grade aluminum and adaptable to Picatinny and Weaver rails, the Holosun Paralow Compact Circle Red Dot Sight will last you through years of accurate shots.image

Features of Holosun Paralow HS503C Circle Dot Sight, Solar/Battery Power:

  • Parallax free with unlimited eye relief
  • Clean sight picture with push button controls and streamlined housing design
  • Fully multi-coated lenses
  • Solar and battery power supplies
  • Switch between circle dot and red dot reticles
  • Battery tray
  • Low mount and 1/3 Co-witness mount included
  • AR riser included. Adaptable to Picatinny and Weaver rails.
  • CNC machining with T6061-T6 aluminum housing with PEO/MAO finish
  • Waterproof to 1m

Package Contents:

  • Holosun HS503C Paralow Circle Dot Sight
  • Low Mount
  • 1/3 Co-Witness Mount
  • Adjustment Tool
  • Torx Key
  • Rubber Lens Covers
  • Extra Battery Tray

Red Dot Accessories

160 / 60
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Red Dot Sight Magnifier

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Related Products to Holosun Paralow HS503C Circle Dot Sight

Holosun Paralow HS503C Circle Dot Sight Unavailable & Discontinued Models

List of Unorderable Models

Holosun PARALOW HS503C Circle Dot Sight, Black, 133X54X72mm, HS503C , MPN: HS503C , UPC: 760921087589 , Code: 28Y-RD-HS503-HS503C
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