The magpul bipod for a.R.M.S.17s style is constructed of mil-spec hard anodized 6061 t-6 aluminum, stainless steel internals, and injection-molded reinforced polymer.It is designed to be used in conjunction with an appropriate 17s-style mounting device that is purchased separately and is used for proper mounting to your weapon system of choice.Deploying and adjusting it is quick and easy.Spring-tensioned legs stow neatly forward and snap down and lock into place with one hand.The legs extend a full four inches, from 6.3" to 10.3".It can tilt up to 50 degrees and pan up to 40 degrees.Additionally, the magpul bipod has the exclusive ability to lock pan at 0 degrees while maintaining full tilt functionality.A soft rubber bipod locking knob cap is attached to the locking knob gives users a steady, non-marring forward rest while the bipod is folded.Should users choose to change feet, the magpul bipods legs accept most atlas pattern bipod replaceable feet, except for the atlas 5-h style.Type Of Feet: RubberMaterial: 6061 T6 AluminumLockable Position: YesAttachment Type: 17S-StyleNo. Of Legs: 2