PRI The original G1 Flip Up Front Sight with .750 Crossbolt

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