The HS403R is a 20mm micro sight designed for rifle and carbine applications. HS403R features a Rotary switch to select reticle intensity, Holosuns Red Super LED with 50k hour battery life, and a 2MOA dot with 10 daylight and 2 night vision compatible reticle intensity settings.HS403R 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 rubber lens covers, and a battery compartment integrated into the Rotary switch for the 2032 battery. HS403R is a versatile sight for users of all levels.
Specifications:

Magnification	1x
Objective	20mm
Field of View	Unlimited
Eye Relief	Unlimited
Dot Size	2 MOA
Tube Diameter	20mm
Length	2.75"
Weight	3.53 oz
Finish	Black Anodized
Battery	CR2032
Reticle	2 MOA Red Dot
Adjustment Size	0.50 MOA
Proofs	IP67 Waterproof
Optic Coating	Multi-Coated
Windage Elevation	Adjustable