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UPC 605930625394-01
 
The HS403R is a 20mm micro sight designed for rifle and carbine applications. HS503R features a Rotary switch to select reticle intensity, Holosun’s Red Super LED with 50k hour battery life, and with 10 daylight and 2 night vision compatible reticle intensity settings.
HS503R housing is made from durable cast aluminum and includes both a lower 1/3 co-witness mount (1.63”) and a low mount (.75”) for low-comb height rifle applications.  Additional features include Shake Awake technology, rubber lens covers, and a battery compartment integrated into the Rotary switch for the 2032 battery. HS503R is a versatile sight for users of all levels.