The flash hider is a universally viable barrel attachment.
Use muzzle as reducing the first shot recoil by the most will also decrease the follow up shots as well if you understand what I mean.
There is no recoil either way but it is mostly horizontal.
It only has 21 bullets so use comp to make the first 5-7 horizontal shots accurate Bearing 9 Echo, Hibana Flash Dont spray just burst fire this one as the horizontal recoil is small but really random.
This guide for all guns up to shifting tides and should be valid for ages unless Ubisoft do a massive overhaul like they did in Grim sky.
Fire in small burst to be able to control.
Smg11 Sledge, Mute, Smoke — Flash hider Dont bother trying to full auto this gun….
Whenever I tested a weapon and there was no clear winner for which attachment was best, the flash hider won by default.