Gen 3 or 4 glocks specifically
more:
https://www.youtube.com/watch?v=RUi5Q0Ue2CI&t=8m35s
https://www.youtube.com/watch?v=m4ct774COeo&t=8m28s
Gen 3 or 4 glocks specifically
more:
https://www.youtube.com/watch?v=RUi5Q0Ue2CI&t=8m35s
https://www.youtube.com/watch?v=m4ct774COeo&t=8m28s