Gen II Gas Block Front sight Replacement Post Assembly
The PRi Flip Up Front Sight with .750 diameter apposing set screws. Sight works with the M16/M4/AR15 family of rifles. This sight eliminates the shadow cast on the optical sights and the full circle hood increases the speed of target pick up.
PRI Flip Up Front Sight with .750 w/ set screws. 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 the standard A2 post for height adjustment. Sight weighs 4.8 ounces. The center line of barrel to line of sight is 2.57" This sight requires the barrel to have flats machined into the barrel.