The Monstrum Tactical S3932-R-RG is a reliable everyday use tactical scope with a Rangefinder reticle. Crystal clear optics at 3-9x magnification for close to mid-range shooting. Includes a throw lever to make adjustment easier. The etched black reticle is always visible without illumination or can be lit red or green for better reticle visibility at night or low light environments. This scope has a functionally designed Rangefinder reticle for faster range estimation and holdover correction. Comes with 1 inch scope rings that mount to any flat top Picatinny rail equipped rifle.
AO stands for adjustable objective (sometimes referred to as parallax adjustment). An AO scope allows you to adjust the objective lens of the scope, bringing the target image into focus with the plane of the reticle. When in focus with the plane of the reticle, the parallax effect is eliminated. An AO scope allows you to 1) bring your targets into sharper focus 2) eliminate parallax and 3) gather ranging information about your target. Learn more about Parallax