Varios vídeos del desmontaje de la Hk Usp C del instructor Óscar Zorita
https://www.youtube.com/watch?v=gcB_z3167dg
https://www.youtube.com/watch?v=s3FaoZXjN8U
https://www.youtube.com/watch?v=9-9nnxxlDS8
https://www.youtube.com/watch?v=gKj9v6tj6eM
https://www.youtube.com/watch?v=zsngr6YThg8