The M9 pistol is a gun that you can find in zombie survival game, Project Zomboid. The M9 pistol has 15 round mags (Biggest pistol mag.) that use 9mm bullets. It is extremely common (Well, in terms of gun rarities.) being present in all police-themed buildings. The police officer and veteran occupation that you can select at the start of the game have a high chance of spawning this gun in your house. However, as all common things in any game has it, its kind of ass. The gun has a small base hit percentage (Without aiming levels.) and honestly just does really low damage. It'll likely be your first pistol, but with all these downsides, theres actually an upside. It has one of the lowest noise radiuses in the game, only 50 tiles which really isnt a lot. Anyways, back to downsides. The M9 is the SECOND most un-upgradable gun in the game. (The first being the JS-2000) It can only be modified with 3 attachments, Iron Sights, Red Dot sight, and the underbarrel laser. (Please for the love of god dont use the Red Dot for this gun...) It honestly just really sucks, but what much can you expect from the most common pistol of the game? Aside from downsides, upsides are it's common, somewhat reliable at aiming level 4+, and ammo + mags are really common. I really dont feel like this gun is good, or the worst. It's just.....mediocre. But like worse.
Timmy: "I found an M9 Pistol, we have like 15 of these already."
Jimmy: "Just take the ammo and mags and leave it...."