Sightmark's Core 2.0 HX 3-9x40mm Riflescope is an upgraded version of the original Core, now offering upgraded glass, finer click adjustments, and improved low light performance. The reticle is etched and is available in either a Duplex or Hunter Dot configuration. The lenses are fully multi-coated for optimal image quality and light transmission. With its solidly built housing made of aircraft grade aluminum, the Core 2.0 HX promises to be a dependable hunting tool in any environment. This robust housing allows the Core 2.0 HX to be both waterproof and shockproof. Features: Etched reticle – available in either Duplex or Hunter Dot configurationFully multi-coated lenses Waterproof and shockproofOne-piece aircraft grade aluminum tube Sightmark Core 2.0 HX 3-9x40mm Duplex SFP MOA Riflescope SM13100DX