Mission First Tactical Flip Up Front Sight -A standard front sight tool is required with each clickequaling the standard 1/4 MOA. Unlike other backup sights MFT has developed a shroud that shelters the front post blade from debris and impact damage when not deployed. A slim profile allows the sight to sit under most optics. Manufactured using a specially developed Military Grade reinforced, super tough polyamide, MADE IN THE USA. Full Elevation adjustment, tool requiredLow profile snag resistant designShroud protects front post blade from debris and impact damageAccepts any standard front post bladeCan fold to the rear, the correct direction if droppedManufactured using a specially developed Military Grade reinforced, super tough polyamide