Holosun HS503GU 1X20mm Circle Dot Tactical Hunting Shooting 2 MOA Red Dot and 65 MOA Circle Reticle Gun Sight

No reviews

Sale price$199.99 Regular price$241.49
In stock


The Holosun Paralow HS503GU red dot sight features the circle dot reticle designed for precision shooting and quick target acquisition. It is a red dot sight designed for tactical, hunting, and shooting sports. The 2 MOA fine dot caters to precision shooting. Whether you’re hitting bullseyes at the range or engaging distant targets, this precise aiming point ensures you’re right on target. Rapid target acquisition—when you’re transitioning between targets, especially engaging in close-quarters scenarios—the 65 MOA circle gets you on point swiftly with a larger point of aim. The 65 MOA circle can also be used for Range Estimation for 5’5" high target.

With the use of new LED technology plus Holosun's Shake Awake Technology, it not only ensures a long battery life for up to 5 years with a single CR2032 battery but also contributes to the sight’s reliability and performance. The Holosun's Shake Awake Technology increases battery life by shutting down the system during periods of motionlessness and instantly activates the system when it senses the slightest movement. Your sight will be ready when you need it. It can be mounted on any M1913 Picatinny rail. Ultra-low parallax makes the POA (point-of-aim) is the POI (point-of-impact).

Whether you’re engaging in competitive shooting or tactical scenarios, this optic is an outstanding choice. It delivers durability, user-friendly operation, and exceptional performance across a range of shooting applications.

The Holosun Paralow HS503GU red dot sight is a Durable, Waterproof and Fog-proof Illuminated Circle Dot Reticle Optic gun sight designed for tactical shooting and hunting.



  • Red reticle
  • 2 MOA red dot and 65 MOA circle
  • Designed for day and night use with 12 brightness settings: 10 DL & 2 NV compatible
  • Shake Awake Motion Detection, automatic off and on based on motion
  • Automatic turn off when not in use, automatic turn on with slight motion detected with the last setting recall. For first time use, it must be powered on manually by press the “+” or “-” button 
  • Up to 50,000 hours of operation on one CR2032 battery
  • Parallax-free with unlimited eye relief
  • Multicoated lenses
  • T6061-T6 aluminum
  • Durable and reliable construction
  • IP67 water resistant rating
  • Dimension (in): 2.6"L x 1.5"W x 2.7"H
  • Weight (oz): 4.9
  • Central height (in): 1.63
  • 0.5 MOA adjustments
  • 20mm lens
  • Weight: 4.9 oz.
  • CR2032 battery, lens cover, low mount and 1/3 Co-witness high mount are included

Important notice before placing your order:

1, Please do not buy this optic if you have Astigmatism because the dot is too small and may look fuzzy to you.

2, These items are covered by HOLOSUN® Warranty. For details about Holosun Warranty information, the link is https://holosun.com/index/category/items/id/94.html.

Proposition 65 Warning for California Consumers

WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov
For more information go to www.p65warnings.ca.gov

Government Export Restriction

These items are controlled by the U.S. Government under ECCN 0A504 and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.