The pistol was created for short range self defense. Follow up is important in order to stay on target in case a follow up shot is needed, and it is good practice that helps to train your hand and eye to produce a proper "sight picture" for accuracy.
Obviously, it will depend on the caliber of pistol, and the distance between you and the pistol. A person firing a .357 Magnum revolver would be exposed to ABOUT 140 dB.
The safety on a pistol is a device to prevent it from firing accidentally.
A pistol by loading ammunition into the chamber. The firing the pin then strikes the cartridge, which causes the pistol to discharge.
firing with a limp wrist to see if pistol will malfunction
A pistol which automatically loads the next round into the chamber for firing after the previous round is fired.
Firing Pin Block
No, but, e-gunparts.com might.
Best left to a gunsmith
Contact Browning.
what's the question ???
If the decocker is n the fire position, and a round is chambered, the hammer will rise and fall, striking the firing pin. The pin will strike the primer of the cartridge, firing the pistol.
An M9 pistol is not capable of automatic fire, in any form. The firing mechanism is not designed to fire a new round until the trigger is released and pulled again. That is, what is commonly called the "action" of the pistol needs the trigger to be pulled to release the firing pin after each round is fired.