The Vaznev 9K is a submachine gun available in Call of Duty: Modern Warfare 3 (2023).
The Modern Warfare 3 gunsmith contains a huge range of attachments designed to enhance the various characteristics of the Vaznev 9K. This is the strongest combination to use:
For maximum recoil control, the Bruen Pendulum muzzle, Chewk Angled Grip, and Demo-X2 Grip ensures the bullets from the Vaznev 9K hit the target every single time. Thanks to the lower recoil, you can make the most of the extra damage and bullet velocity provided by the SA Response III barrel.
Last and by no means least is the Otrezat Stock which maximises sprint speed and movement speed while you're aiming down sights with the SMG.