I DO NOT ENDORSE THE PRACTICE OF BUMP FIRING OR CONDONE THE FOLLOWING VIDEO!!
The term "bump firing" came up on several discussion boards I have read concerning my AK clone rifle. On his excellent Romanian AK page (link on the bottom of this page) the author demonstrates how this is accomplished.
I DO NOT CONSIDER THIS A SAFE OR RESPONSIBLE WAY TO FIRE THESE WEAPONS!!
I have always been taught to aim my shots. You cannot be sure of what is behind your target if you don't know what your target is. The individual firing in the videos was doing so at a controlled firing event. His purpose of doing these videos was purely for educational purposes. Doing this at your local range may (and probably will) violate local range rules.
Bump Firing Videos
This type of shooting looks cool in a John Woo film or in Rambo, but professionals do not spray and pray when it comes to firing. Even in the military the use of automatic fire is taught to be an aimed proceedure. It is used to either hit a low percentage target with one or two rounds of a burst with the other rounds compensating for elevation and windage adjustments; or to hit multiple targets with one burst in a beaten zone. It is not normally employed in this manner. It is a waste of ammo and money at today's ammo rates. Be a professional shooter!
Shoot Often...SHOOT SAFE!! (not like this!)