Designed specifically for shotguns and short-barreled rifles, the Sightmark Wolverine CSR FDE features a 4 MOA red dot reticle with a 23mm objective lens and adjustable digital switch brightness controls. Ready to handle the tough stuff and look good doing it, the Wolverine is housed in a rubber-armored single-piece 6061-T6 aluminum body and sports a striking flat dark earth finish. The Wolverine CSRs compact design weighs only 10.3 ounces and offers extremely long battery life on a single AA battery. The versatile CSR offers night vision modes, enabling it to co-witness with night vision sights. The Wolverine CSR FDE is fog proof and nitrogen purged, permitting use in harsh conditions and temperatures ranging from -22 to 122 degrees F. All Wolverine CSRs are IP67 waterproof and are submersible to 3 ft. Ready to adapt to any environment, the Wolverine boasts an adjustable mount height for maximum viewing comfort.