This is what started it all "The Plug" as shown in the lower image. The Plug is used for protection of your glock. Click on the image to see the product details.
The model 27 below is one of many models that Jentra makes custom parts for.
Welcome to Jentra, The makers of:
All our product parts are proudly made in the USA.
Jentra and Jentra Parts are not associated with glock inc.or glock factory parts