For airsoft players who need an iron sight assembly in addition to a scope, NcStar has built this 45 degree offset flip-up rear sight to work seamlessly with most rifle scopes on the market. Simply attach the receiver height Picatinny/Weaver rail mount to the top RIS of your airsoft gun for a dual sight setup that will exceed your expectations. The assembly folds backward so the sight is out of the way when not needed, yet it's easily accessible with just the flick of a finger. Fully adjustable for windage with a dual aperature, this 45 degree rear sight offers all the features of a standard A2 sight while still allowing you to mount a high-powered scope to your airsoft gun. It's never been easier to engage targets at a distance, transition to CQB, and then back again.