Our Four position foldable fore grip is constructed of Polymer for strength and durability, comes in a Black finish. This grip is ergonomically designed to allow multiple positioning and angles and to provide a more comfortable & stable shooting. The fore grip can be locked into 4 different positions by just the push of a button and then easily moving the handle to your desired position. This grip will attach to most any Weaver/Picatinny rail systems. Ideal for rifles setup with quad rails or rail systems under the forend. This item is intended for medium duty use and is well suited for .223 ( 5.56mm ) caliber rifles and smaller. Not intended for use with shot guns.