After a grueling event grind, players can finally use the new Sirin 9mm secondary inCall of Duty: Black Ops 6.This foldable SMG is the first of its kind to reside in the secondary slot, making it a powerful backup weapon for aggressive playstyles.

It’s a fairly mediocre weapon out of the box, but with the right attachments, you’re able to turn the Sirin 9mm into the best secondary weapon in Black Ops 6 multiplayer and a solid backup option for Zombies. Let’s dive into the best attachments for this weapon, then we’ll cover some basic loadout synergies to maximize the Sirin 9mm’s effectiveness.

The Best Sirin 9mm Build

We don’t have many attachment options for the Sirin 9mm, but what is on offer here is fantastic. You’ll want to throw on aVertical Foregripas soon as you’re able to, as this fixes virtually everything wrong with this weapon. It greatly reduces the gun’s recoil, increases your movement speed, and substantially reduces its ADS speed, making it competitive with most SMGs.

You’ll also want to throw onExtended Mag Ito increase its magazine to 40 rounds, which should be enough to comfortably get three kills before needing to reload. ALong Barrelis needed to hit your optimal TTK at a reasonable distance, andan opticis downright required to remove the gun’s hideous iron sights. We then finish the build with aSuppressorto stay off enemy radar.

Loadout Recommendations

Suppressed weapons typically want to useGhostto stay off the radar while moving, so you might as well spec into theRecon specialtyfor some added benefits. We trigger the set bonus withNinjato muffle our footstep audio andVigilanceto become immune to CUAVs. Since we’re using Perk Greed, we can run Ghost and Ninja at the same time, freeing up our second perk column forFast Hands.This removes the sluggish swap animation for the Siris and your paired primary.

Your choice of equipment will boil down to your preferred game modes and playstyle. For an SMG like this, you should consider usingStimsto trigger HP regeneration after a tough gunfight. We also recommendTrophy Systemsif you play the objective. Throw one down near a Hardpoint or Domination flag, and you’ll counter just about all throwable equipment that gets near you or the objective.