Diamondhead Narrow Classic Rear Combat Sight

Diamondhead's CLASSIC Rear Sight's revolutionary design incorporates traditional CLASSIC round apertures and the "goal-post" style Upper Housing. The CLASSIC sight has a very low folded height of 0.435"? and is compatible with all Mil. Std. M1913 Picatinny rail systems. Features: Traditional CLASSIC round apertures, the "goal-post" style Upper Housing with Reference posts and horizon bars Dual same plane short and long range apertures (at exact same height of factory A2 sights) Fully deploys and stows with small or large aperture active Secure and accurate 0.5 MOA windage adjustment Flips up quickly for rapid deployment Folds down with the push of a button Locking system ensures sight stays up securely and remains zeroed in combat situations Easy installation with proprietary clamping system, providing secure attachment to all Mil. Std 1913 Picatinny Rails Mil. Spec. Type 111 black anodized 6061 T6 aircraft aluminum construction Combat Durable