The ProMag "Swiss Pattern" vertical fore grip attaches to forend rails, quad forends or any Picatinny rail. The fore grip provides a natural grip and operation of flashlights, lasers and other weapon mounted accessories. Manufactured from injection molded ZytelA(R) based black polymer. No tools or hardware required. No permanent modification required. FeaturesSwiss pattern vertical fore gripAttaches to forend rails, quad forends, or any Picatinny railMade of injection molded Zytel based black polymerNo tools or hardware required