Hogue Overmolded AR-15 Grip The Hogue OverMolded® AR-15 grip is specially designed to retain the important lines and aesthetics of the AR, while at the same time providing a comfortable, lightweight rubber grip with finger grooves and palm swells. OverMolded Stocks are constructed by molding a super strong, rigid fiberglass reinforced skeleton or "insert" that precisely fits the guns' action. This rigid skeleton is then OverMolded with a durable but soft synthetic elastomer (rubber). During the heat and extreme pressure of injection molding the elastomer adheres chemically as well as mechanically to the skeleton, resulting in a permanent bond between the rubber and the insert. The super strong skeleton gives the stocks their strength, and the precise molded dimensions provide a perfect drop-in fit to your AR-15. The state of the art elastomer material used on Hogue stocks won't harden with age and is virtually impervious to all oils and solvents found around firearms, providing years of dependable service.