Strike Link, Si Link cfg fde Curved Foregrip Reloading Tools turn orbital polisher up to turn orbital polisher up to 6 or the highest setting and with light to medium pressure work the compound from opaque to clear to ensure you have broken down the abrasives and have brought the surface to a deep gloss Timer allows you to set the cleaning time The link cfg is constructed of 6061t6 aluminum making it ultra durable for continued use The strike industries link cfg (curved fore grip) design was derived from the cobra tactical fore grip and features sis (patent pending) link system which is mountable to both m lok and keymod rails