BARSKA 40x40 Huntmaster Riflescope Precision riflescope with 4x magnification and 40mm objective lens Fully multicoated optics provides good visibility in low light conditions 1-inch monotube engineered to handle demands of high-power shooting 30/30 reticle; waterproof, fogproof, and shockproof housing 30-foot field of view @ 100 yards; measures 12.2 inches long; lifetime warranty