This is a 3 1/4 inch 8 slot picatinny rail mounted on an Uzi top cover. It has been repainted in a semi gloss matte black finish to match the IMI Uzi. Level and not canted, ready to simply take your cover off and put this on, leaving yours still original. If you have not shot your Uzi with a red dot sight, it is much faster to get on target with and do follow up shots plus much more accurate. These are in stock and ready to mail out, same day shipping. Fits IMI, Vector, and other full size Uzis. For full auto and semi auto guns.