A simple optic with fixed magnification and fully anti-reflection multi-coated lenses, the Sightmark 4x32 Core TX Riflescope comes with a reticle calibrated for popular .223 and .308 ammunition. Exposed turrets adjust at 1/2 MOA per click and are lockable to help maintain a consistent zero, with 120 MOA of elevation and windage adjustment available in the 30mm maintube. The etched, red/green illuminated reticle offers five brightness settings to suit any ambient light condition. The scope is made of 6061-T6 aluminum, nitrogen filled to prevent internal fogging, and IP67-rated waterproof and submersible. It comes ready to use with scope rings and flip-up lens covers.