The HX 4-12x40 SFP MOA Riflescope with Duplex Reticle is an entry-level scope from Optisan, designed with a 25% larger field of view than most other 4-12x40 scopes. It's made to be a simple and sturdy scope that holds most magnum centerfire calibers such as .270, .308, .and 30-06. Windage elevation is adjustable with a tool-free finger-resettable reset-to-zero feature. The duplex reticle is for shooters looking for a classic simple crosshair.