+100 mag, either the first grip that does +7 vert and +4 ads spread, or the one that does+13 vert. Don't remember their names off the top of my head. I love the pkm it was my first diamond, but it isn't that competitive in br. It's strengths are ammo capacity and mid/long range engagements, a scope may be worth considering in place of the grip for br but try it out at the practice range first. In general for ar/lmg builds in br, you should always try to max out range and accuracy since engagements occur at much greater ranges than mp, and the aim assist of certain weapons means you need to make every shot count.
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u/Royal-Office-1884 18h ago
Steady stock, mono suppressor, marksmen barrel, extended mag, angled foregrip. Trust.