The BG-FG Flip Grip allows a shooter to change weapon grip angles... in seconds, without tools. Choose between 24 degrees of rake or true vertical positions, quickly and securely. Select vertical - it\'s perfect for PSD or weapon in-vehicle use, and enjoy a relaxed strong hand wrist angle. Need to switch to a more conventional raked angle for range use? Just pull down on the grip housing and rotate 180 degrees to lock into position. Simple. Strong. The Flip Grip comes with corrosion proof stainless steel hardware, famous TangoDown bullet proof polymer construction, installation tool and complete instructions. BG-FG Flip Grip fits all M4/M16/AR-15 series rifles and clones. Any rifle or carbine configured to accept the standard M16/AR-15 & 1/4-28 fastener will accept the BG-FG.