FREE SHIPPING & FREE RETURNS*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart
Government Export Restriction Government Export Restriction
Questions & Answers
Will the HE503R fit on the HSCQD1 quick release base? And if it will, are they the same height? Expert Answer

The qd base you are reffering to and the 1/3 mount that comes with the unit would be the same height, it also comes with a low mount.

by Tom B, Gear Expert, September 28, 2021
Will this fit T1/H1 mount.. a little confusing.. Expert Answer

Yes, this uses the Aimpoint micro footprint.

by Tom B, Gear Expert, September 28, 2021
Customer Reviews
Helpful Positive Review great gold dot BUT by buck, Verified Owner, June 7, 2020
I really like Holosuns products. I have a lot. This is a great optic BUT I was very disappointed in the fact that you cannot just have a gold circle (without the dot). The pictures in on Optics Planet clearly shows you can. I will be putting this on ...
Read More...
6/12 found this helpful
Helpful Negative Review HE503 holosun by Zackaria, July 19, 2020
Reticle is nice and crisp even under my astigmatism. 3 stars because I believed this would be the same as a T2, or any other micro dot but this red dots body is tall. On my 1/3 mount I can't see my irons at all. I'm guessing absolute co witness mount...
Read More...
4/11 found this helpful
Most Recent Reviews not made in usa but by owlx, Verified Owner, August 19, 2025
not made in usa but it is a well made sight for the price point. i would much rather support eotech or aimpoint but i do not have the spare funds at the moment. this will do for now until i can replace it with an eo or aim.
Most Recent Reviews Great sight by Av, Verified Owner, August 20, 2024
We all know Holosun makes great product and this is one of them. You can buy them from a lot of online dealers. The price is the same everywhere so why buy here?Optic planet has the best deals and sales
Most Recent Reviews HE503R-GD gold by Edward Ritchotte Jr, Verified Owner, October 15, 2023
I bet some of you have wondered “why do they offer a GOLD site?” well, for those of us who are red/green color blind, this gold dot makes tracking the target much easier. And this being my second scope with gold optics, I gotta say I love it! Took it...
Read More...
Read All 5 Reviews

We've got an AWESOME deal for you!

Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
Color: Black Reticle: 2MOA Dot & 65MOA Ring Illumination Color: Amber/Gold Condition: New Red Dot Sights-Footprint: Not Applicable

Code: 28Y-RD-HOL503R1-HE503R-GD

MPN: HE503R-GD

UPC: 605930625394

Blazin' Deal
List: $336.46Save 42%
$196.19

Product Info for Holosun HE503R Micro Red Dot Sight

Improve your aim and overall shooting experience by equipping this Holosun HE503R Micro Red Dot Sight to your favorite firearm. Holosun designed these Red Dot Sights with their proprietary Multi-Reticle System (MRS) that allows you to choose from a 2MOA dot or 65MOA ring to best suit your needs. The Holosun HE503R LED Micro Red Dot Sight also offers 12 total adjustable brightness settings via a rheostat dial that lets you pick from 10 daylight options or 2 NV-compatible options. Rugged and lightweight aluminum housing protects the optic, and it has water-resistant, shockproof and fogproof properties for use in any environment or conditions. What's more, the advanced LED technology powers the optic for up to 50,000 hours using only a single CR2032 battery. Install the Holosun HE503R-GD Elite Micro Red Dot Sight onto your gun for a parallax-free sighting experience that offers unlimited eye relief paired with an unlimited field of view.image

Specifications for Holosun HE503R Micro Red Dot Sight:

Manufacturer: Holosun
Color: Black
Finish: MAO
Fabric/Material: 6061-T6 Aluminum
Magnification: 1 x
Objective Lens Diameter: 20 mm
Objective Window Size: 20 mm
Reticle: 2MOA Dot & 65MOA Ring
Illumination Type: LED
Illumination Color: Amber/Gold
Brightness Settings: 10
Eye Relief: Unlimited
Adjustment Type: MOA
Adjustment Click Value: 0.5 MOA
Emitter Type: Enclosed
Parallax: Parallax Free
Optical Coating: Coated
Battery Type: CR2032
Battery Quantity: 1
Battery Life: 50000 hours
Operating Temperature: -22 - 140 Fahrenheit
Water Resistance Level: IP67
Shockproof: Yes
Fogproof: Yes
Length: 2.75 in
Width: 1.43 in
Height: 1.62 in
Weight: 3.74 oz
Condition: New
Magnification Type: Fixed
Red Dot Sights-Footprint: Not Applicable
Mount Type: Picatinny
Attachment Type: Picatinny
W/E Travel at 100 Yds: 50 MOA
Housing/Frame Material: 6061-T6 aluminum

Features of Holosun HE503R Micro Red Dot Sight

  • Optional 65 MOA Circle Dot/2 MOA Dot
  • Parallax free with unlimited eye relief
  • Rheo Stat Dial controls and streamlined housing design
  • Low mount and 1/3 Co-witness mount included
  • Adaptable to Picatinny and Weaver rails
  • CNC machining with T6061-T6 aluminum housing.

Package Contents:

  • Holosun HE503R Micro Red Dot Sight

Holosun HE503R Micro Red Dot Sight Orderable Models

List of Orderable Models

Holosun Micro Red Dot Sight, 2 MOA & 65MOA Ring Reticle, MAO, Black, HE503R-GD , MPN: HE503R-GD , UPC: 605930625394 , Code: 28Y-RD-HOL503R1-HE503R-GD
Compare (0)