Kruger 63331 TacDriver Riflescope - 4x-12x 40mm: * Fully coated optics * Rapid Target Technology (RTT): large exit pupil for quick target acquisition * 3.75" eye relief for all magnifications * 1/4 minute click windage & elevation adjustment * Waterproof/fog proof/nitrogen-processed * Hunter duplex reticle * U.S. engineered * Model# 63331