Gen II Gas Block Front sight Replacement Post Assembly
The Original PRi G1 Flip Up Front Sight with .750 diameter apposing set screws. Sight works with the 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 G1 the original Flip Up Front Sight with .750 w/ set screws and thumb wheel elevation adjustment. 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 for elevation adjustments. Sight weighs 4.8 ounces. The center line of barrel to line of sight is 2.57". This sight requires flats to be machined into the barrel.