Often with a semiautomatic pistol, once a loaded magazine is inserted and the slide racked, you now have a pistol that is ready to fire: there is a fresh round in the chamber, the hammer (or striker) is cocked. This CAN be a dangerous situation, if the shooter isn't going to fire the weapon immediately.
In the past, a person would have to CAREFULLY lower the hammer while pointing the pistol in a safe direction. If they slipped, they would fire a bullet accidentally AND their thumb would get hurt--mashed by the recoiling slide & hammer.
A decocking lever prevents such accidents by LOWERING the cocked hammer to a safe position. Once utilized, if the shooter wanted to prepare the pistol for firing, they would have to:
Manually recock the hammer, if the pistol were a single action only type, or, manually recock, or utilize the pistol's long Double Action trigger, if the pistol was a Double Action/Single Action type.
Yes
Decocking, safety lever, and firing pin block. The link at the bottom of this page will take you to the study guide for the M9 pistol. 2010 US Navy answer: Decocking/Safety lever, firing pin block, and half-cock notch.
The parts that you need are: 1. Decocking Lever 2. Decocking Lever Bearing 3. Decocking Lever Spring 4. Sear 5. Sear Spring 6. Safety Lever 7. Mainspring 8. Trigger Bar 9. Hammer Strut 10. Hammer Cheaper to have SIG do it (parts and labor actually cheaper if SIG does it!!!)
The actions operation.
0-60 usd
A single shot pistol, a Derringer and even a revolver are technically NOT considered semiautomatic. To be semiautomatic, the weapon would need to use the energy from a previous round to cycle the action. Revolvers use the muscle energy of the shooter's finger to revolved the chamber.
50-100 USD
shotgun, rifle and pistol.
Yes, Coonan is one.
Check the receiver and barrel
If you're referring to the US M9 pistol - the Beretta 92F - you can decock it simply by placing it on safe. The Beretta 92/M9 has a slide mounted hammer drop pin block safety which releases the hammer and blocks the firing pin so that the hammer won't strike it. If you want to actually CLEAR the pistol, you would put it on safe, drop the magazine, pull back the slide, inspect the chamber, then release the slide. I'd walk you through the functions check, but it's been too long.. Always point it in a safe direction before decocking. My 9mm has a decocking lever on the side, above the magazine release. Down decocks, up is the safety. You can also decock it by placing your thumb on the hammer, gently squeezing the trigger until the hammer is released, and slowly letting the hammer down. If your thumb slips off the hammer the pistol may fire, which is why you want it pointed in a "safe" direction.
What model?