Which of the following are safety features found on the M9?

• A. Decocking, Safety lever, Firing pin block
• B. Decocking, Safety lever
• C. Firing pin block only
• D. Decocking, Firing pin block

Answer: (A)

The M9 uses layered safety features designed to prevent accidental discharge in multiple scenarios. It has a decocking lever that lets you safely lower the hammer without firing, which is handy when you’re bringing the pistol into a safe condition or reholstering. It also has an external safety lever that blocks the firing mechanism, giving you a positive manual safety you can engage. In addition, there’s an internal firing pin block that prevents the firing pin from moving forward unless the trigger is deliberately pulled, providing protection if the weapon is dropped or jarred. Because the M9 includes all three elements—decocking capability, an external safety lever, and a firing pin block—the option listing all of them is the most complete and accurate reflection of the safety features on this firearm. Other choices omit one or more of these safety features, which is why they’re less correct.