Editor recommended because this is the officially named Prestige Attachment for MK.78. It is not labeled BEST. Tradeoffs are quoted from official launch copy.

MK.78
MagazineMFS Heatshield Belt FedReach maximum Weapon Level and Prestige the weapon.
Takes longer to overheat and improves mobility in addition to removing movement penalties when firing. Improves recoil but has a significantly longer overheat penalty. Improves hip spread, but incurs an ADS Spread penalty.
Attachments 1
- MagazineMFS Heatshield Belt FedReach maximum Weapon Level and Prestige the weapon.
Takes longer to overheat and improves mobility in addition to removing movement penalties when firing. Improves recoil but has a significantly longer overheat penalty. Improves hip spread, but incurs an ADS Spread penalty.
Alternatives
- Base weapon / no prestige attachmentKeep the base gunsmith path if you do not want the official prestige tradeoff quoted above.
Evidence basis: Source
For streamers: add this as an OBS Browser Source — stream widget
Recommended · bo7-mk-78-prestige-launch