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Holosun HS503R 1x Red Dot


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Holosun HS503R

The Holosun HS503R is a small compact micro red dot optic that features Holosun’s new Rheostat Dial to adjust brightness settings. Employing their LED technology, The HS503R can achieve “constant on” battery life of up to 100,000 hours on medium setting. This optic features Holosun’s proprietary Multi reticle System (MRS) giving the user 2 reticles to choose from.

HS503R Features

New rotary control for faster operation and visual brightness indicator

Advanced technology LED allows up to 100,000 hours of operation on one CR2032 battery

Unlimited field of view

Parallax-free with unlimited eye relief

Durable and reliable construction

Low mount and 1/3 Co-witness mount included

For Holosun HS503R warranty information please CLICK HERE »


Light Source LED
Reticle 2 MOA Dot & 65 MOA Ring
Parallax Free Yes
Unlimited Eye Relief Yes
Magnification 1 x
Multi-Coatings Yes
Battery Type CR2032
Battery Life Up to 100,000 hrs
Brightness Setting 10 Daylight & 2 NV Compatible
Housing Material Aluminum
Surface Finish MAO
Housing Color Black
Adjustment per Click 0.5 MOA
W&E Travel Range ±50 MOA
Storage Temperature -40℉ – 158℉
Working Temperature -22℉ – 140℉
Submersion IP67
Vibration Up to 1000 G
Window Size 20 mm Diameter
Dimension 2.75 x 1.43 x 1.62 in
Weight 3.74 oz
Central Height 1.63 in


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