Waverunner,"Bumping" allows you to empty a 30 round magazine in like 3 seconds.You usually can't do this at a range(it will get you tossed mighty quickly by a range officer).In order to BUMP fire your AK,insert a full 30rnd magazine and load the first round into chamber.Hold the buttstock at hip level and you have to sort of support it with your arm but not hold onto it in any way with your trigger hand(I find if I rest the Buttstock on top of my hip and hold the side of the buttstock AGAINST my side),put your middle finger into the trigger guard(I use the middle finger as it is longer than the trigger-index- finger and the rifle can't jump off).With your finger on the trigger(in the trigger guard),with your other hand using a FIRM GRIP on the lower forearm pull the rifle away from your trigger hand.Once the first round fires you have to concentrate on holding the rifle in place,but if you do the recoil of the rifle will drop the hammer on the succeeding rounds simulating FULL AUTO FIRE.WARNING;this is not F/A as in reality you are pulling the trigger for every shot,but the rate of fire will be much faster than you would think possible.This can be dangerous as the gun can get away from you so if you lose control you MUST REMEMBER TO PUSH YOUR TRIGGER FINGER FORWARD TO CEASE THE FIRE.Another thing to look out for is the barrel temperature,if you burn though several magazines this way without letting the barrel cool down,it will heat up your barrel enough to melt the weld in a muzzle brake.I've had my barrel Devil RED HOT.This is by no means a safe way to operate your AK SO BE CAREFULL.