the angle fore grip is made of polymer
Angled forward grips can provide similar functionality to vertical forward grips. They differ in that a vertical foregrip is more useful for "driving" the weapon, while an angled foregrip is more effective at pulling the weapon into the shooters shoulder while keeping the offhand wrist in a comfortable and manageable position, which helps with accuracy. Some angled foregrips are designed to be used with the C Clamp grip which allows good pointability (as Vertical Foregrips allow) as well as better accuracy because of the shooters more firm purchase on the weapon. One such popular product is the MagPul Dynamics AFG, or Angled Fore Grip. This allows the operator to lay the palm of their hand onto the grip while pushing the thumb down on the top.