Glock Grip Plug Fits Models 17, 17L, 19, 20, 21, 22, 23, 24L, 31, 32, 34, 35 & 36 - This grip plug fills the void in the Glock pistol grip. The plug prevents debris from becoming lodged in the void. Constructed from black injection molded polymer. The plug installs and is removed easily, no modification required. Fits may vary.