PRI Flip Up Front Sight with .750 Crossbolt

PRI Flip Up Front Sight with .750 Crossbolt is constructed of solid 4140 cast steel base with provision for the gas tube an integral part of the unit.   The front post is constructed of T6 6061 hard coated black anodized aluminum.  the front post uses the standard A2 post for height adjustment 1/4 turn increments.  Sight weights 4.9 ounces. The centerline of barrel to line of sight is 2.57". The cross bolts are #10-32 x 3/4" socket head cap screws.