Harris Engineering Round Head Flange Nut Adapter For Plastic Forends. OpticsPlanet Inc is an Authorized US Distributor for Harris Engineering Bipods. Adapter that allows mounting of plastic forends. Specifications for Harris Engineering Round Head Flange Nut Adapter For Plastic Forends 2A: Manufacturer: Harris Engineering Fabric/Material: Plastic Package Contents: Harris Engineering Round Head Flange Nut Adapter For Plastic Forends 2A We offer the complete line of Harris Engineering Bipods. For our complete selection of products by Harris Engineering on sale please visit our Harris Engineering page. For more Bipod Accesories please visit our Bipod Accesories store section. Harris Engineering Round Head Flange Nut Adapter For Plastic Forends