Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Enjoy free shipping during the holidays! 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 Extended FREE RETURNS

We want to ensure that making a return is as easy as possible! With our Hassle-Free, Extended Holiday Returns, eligible orders placed from November 12, 2025 on will benefit from an extended return deadline (January 13, 2026 or 30 days after receipt of your order - whichever is later). We'll even cover the cost of return shipping. Learn more about our Return Policy.

Shopping Cart

Deal 1: 14% OFF Red Dot Sights

12DEALSClick to Copy Coupon Code
Eligible models will have a savings offer and the coupon code to use below. Add the item to your cart and enter coupon code for savings on that select model! Limited time only. Cannot be combined with other promotions or offers.
Government Export Restriction Government Export Restriction

Product Info for Holosun Circle Micro Red Dot Sight 1x20mm, 2 MOA Dot, 65 MOA Circle, Black, HS503CU

The Holosun Circle Micro Red Dot Sight 1x20mm, 2 MOA Dot, 65 MOA Circle, Black, HS503CU Color: Black, Finish: MAO Finish, Magnification: 1 x, Objective Lens Diameter: 20 mm, Reticle: 2 MOA, Illumination Type: LED, Illumination Color: Red, Eye Relief: Unlimited, Adjustment Click Value: 0.5 MOA, Red Dot Emitter Type: Enclosed, Battery Type: CR2032, Water Resistant Mark: 1 m, Weight: 3 oz, Additional Features: Reduced training time and ammunition, Durable and reliable construction, Included Accessories: Standard, Condition: New, Magnification Type: Fixed, Quantity: 1, Red Dot Sights-Footprint: Not Applicable, Adjustment Range: 0.5 MOA, Attachment Type: Quick Detach, Co-Witness: Yes, Housing/Frame Material: 6061-T6 aluminum. is here at OpticsPlanet with great prices and discounts ! Please also check out more options for Holosun HE503CU 1x20mm 2 MOA Dot & 65 MOA Circle Red Dot Sight.

Purchase your new Holosun Circle Micro Red Dot Sight 1x20mm, 2 MOA Dot, 65 MOA Circle, Black, HS503CU from OpticsPlanet today and you will appreciate the easy checkout process, fantastic customer service, Free Shipping policy and information on easily tracking your order.

The HS503CU is a small compact red dot sight with the option of a 2MOA dot only or a 2 MOA dot with a 65MOA circle reticle pattern. Employing new LED technology, the life time for one CR2032 battery can reach 2 years if left on constantly. However, the solar technology and automatic brightness features work together to extend the battery life dramatically beyond that for the average shooter. The U signifies a housing design that shrouds the windage and elevation turrets on two sides. The sight may be installed on various firearms such as shotguns, pistols, rifles, air rifles and crossbows. Low mount and 1/3 Co-witness mount included.

Features of Holosun HS503CU 65 MOA Circle Dot Scope, 28Y-RD-HS503CU:

  • 2 MOA dot & 65 MOA Circle
  • Reduced training time and ammunition
  • Unlimited field of view
  • Parallax-free with unlimited eye relief
  • Durable and reliable construction

Package Contents:

  • Holosun HS503CU Micro Red Dot Sight, 28Y-RD-HS503CU
  • Low mount and 1/3 Co-witness mount
WARNING: California`s Proposition 65

Specifications for Holosun Circle Micro Red Dot Sight 1x20mm, 2 MOA Dot, 65 MOA Circle, Black, HS503CU

Color Black
Finish MAO Finish
Magnification 1 x
Objective Lens Diameter 20 mm
Reticle 2 MOA
Illumination Type LED
Illumination Color Red
Eye Relief Unlimited
Adjustment Click Value 0.5 MOA
Emitter Type Enclosed
Battery Type CR2032
Water Resistant Mark 1 m
Weight 3 oz
Additional Features Reduced training time and ammunition, Durable and reliable construction
Included Accessories Standard
Condition New
Magnification Type Fixed
Quantity 1
Red Dot Sights-Footprint Not Applicable
Adjustment Range 0.5 MOA
Attachment Type Quick Detach
Co-Witness Yes
Housing/Frame Material 6061-T6 aluminum
List: $307.05 (Save 41%)
$179.99
Order Now & Earn $3.60 OP Bucks
Code: 28Y-RD-RCJO-HS503CU
MPN: HS503CU
UPC: 605930624540
See Product
Compare (0)