Leapers, Inc. - UTG Vertical Foregrip, Foldable, Low Profile, Quick Detach Lever Lock, Combat Quality Metal, Picatinny Black Finish MNT-GRP002SQ The folding version of their quick detach vertical AR-15 foregrip allows shooters to fold the grip up and out of the way when not needed. The aggressively textured knurling enhances the grip" and a quick detach throw lever makes it easy to install and remove from your Picatinny rail equipped rifle.