(Not a) Poly 80 Glock Foregrip

thingiverse

The Glock Exotic Weapons System was designed specifically to work seamlessly with a Poly 80 Glock frame. It makes use of a 1-inch long 10-32 button head screw and prints best with the top side facing down. When modifying a pistol in this way, remember that it can change its classification with the ATF, so be sure to have all necessary paperwork in order before making any changes.