MAGPULA(R) PRO HOODED FRONT SIGHT FOR AR-15 The MBUS (MagpulA(R) Back-Up Sight) Pro Sight - Front, Hooded is an all-steel, back up front sight. The hooded front sight arm provides a profile that aids in faster sight acquisition while minimizing snagging. It's also just as durable as Magpul's other Pro sights thanks to a corrosion-resistant QPQ finish that delivers maximum functionality and strength with minimum bulk. When the Hooded Pro Front Sight is paired with the dual aperture, windage-adjustable MBUS Pro Sight - Rear, it can act as a diopter style sight (aperture within an aperture) depending on its placement in relation to the Mfg: Magpul