Sure Plug 1 Black - Designed for Gen 1-3 Glock Models 17, 19, 22, 23, 31, 32, 34, and 35.
Does NOT fit generation 4 models. The Sure Plug designed to keep dirt and debris out of the action of your Glock also serves as a magazine funnel to aid in reloading and prevents the butt of the Glock from ripping through your shirts. Fits: gen 1, 2, 3. Models 17,19,20,21,22,23,31,32,34,35,37,38. Does not fit the 21-SF.