For 13/16 to 1 1/8 inch barrels. These hollow ribs are the style that Hawken used on his rifles. The center is milled out at a 90 degree angle to match the two bottom side flats. This also reduces excess weight and makes it so this rib can be soldered onto round barrels. Also makes it more user friendly when fitting to tapered barrels. These ribs develop a curve due to the stress being released from the metal during machining. This curve in no way makes the rib un-serviceable. In fact, it aids in soldering the rib to the barrel, but you may straighten them by hand if desired. 24" long.
