We have a ready build for the MK.78: long range. Pick a style and your weapon level in the lab above and we equip the right parts for that level, with stand-ins until the parts unlock.
What is the MK.78 max level?
The MK.78 maxes out at weapon level 50. After that you can enter weapon prestige and unlock its prestige attachment.
How many attachments does the MK.78 have?
We list 55 compatible attachments for the MK.78 across 9 slots, each with its unlock level and what it does.
What is the MK.78 prestige attachment?
The prestige attachment is the MFS Heatshield Belt Fed. It unlocks after you reach max level and enter weapon prestige.
What are the alternatives to the MK.78?
In the same class: APOC-338, FiNN LMG, Mammoth. Each has its own page with level-by-level builds.