Get the accuracy you need with the AIM Sports Inc. RT403 Classic Edition Reflex Sight. Constructed with durable aircraft-grade aluminum, this sight features a coated lens that delivers increased light transmission, resolution and scratch resistance for clarity, while the unlimited eye relief allows for quick target acquisition. The dual-illuminated reticle includes an adjustable rheostat for brightness control, and the fog-proof and shock-resistant housing ensures use in most weather conditions.