The Mark AR® MOD 1 is proof you don't need to spend a fortune to turn a basic AR into a badass. We designed this series to squeeze every last bit of performance possible from your AR, MSR, or bolt-action rifle, so you can be on the front line of performance. FEATURES: Multicoat 4; 2nd Generation Argon/Krypton Waterproofing; FireDot Illumination; MARK AR® MOD 1 P5 Dial.