MISSION FIRST TACTICAL Front Back Up Poly Sight Flip Up/Std Elv Adj Black\n\nPolymer Flip Up Rear Sight with Windage Adjustment mounts onto a 1913 Picatinny Rail. A flat head screwdriver is required to adjust an Infinite MOA. Unlike other backup sights MFT has developed a shroud that shelters the aperture from debris and impact damage when not deployed. A slim profile allows the sight to sit under all current magnifiers and optics.\n\nSPECIFICATIONS\n- Full Elevation adjustment, tool required\n- Low profile snag resistant design\n- Shroud protects front post blade from debris and impact damage\n- Accepts any standard front post blade\n- Can fold to the rear, the correct direction if dropped\n- Manufactured using a specially developed Military Grade reinforced, super tough polyamide\n- Rail clamp nut has been redesigned so that there is no spin out when overtightened\n- All plastic components have been changed to a higher strength material\n- Retaining pin for the cover has been redesigned so that the pin does not slip out of position\n- Metal Front Site Post\n- Weight: 0.5oz\n- Height: 0.879\"\n- Width: 1.08\"\n- Length: 2.23 OA. /.6 from top of rail