Vortex Crossfire II 4-16x50 AOThe Crossfire II delivers uncompromising performance with its long eye relief, fast focus eyepiece, fully multi coated lenses, and resettable MOA turrets. Built to be clear, rugged, and bright, it outshines other riflescopes in its class. Its hard anodized, single piece tube is crafted from aircraft grade aluminum and is nitrogen purged and O ring sealed to ensure reliable waterproof and fogproof performance in any conditions. Dead Hold BDC (MOA)