The SN-12 was purpose designed and built as a combat optic. It is not a hunting scope adapted to tactical senarios by changing knobs and reticles. Maximum durabitity and brute strength construction ensure that this scope will stand the beating a combat optic will subjected to. Fixed 4x magnification allows the shooterto realize enormous field of view as well as the precision needed for the occasional long shot. it has integral Picatinney rail mount. Other standard features are M40 style 1 MOA knobs for fast and accurate adjustments, rapid focus diopter adjustments with a range of -3/+2 high resolution objective lens. It has a lit red recticle with adjustable brightness. A good solid optic. I do not take  trades.