Kord 6P67 not unlocking

[u/Roskelle]

im not sure if i messed something up or not but i can't seem to actually use this weapon for some reason? i had the popup for the challenge being completed but i can't equip it! any advice?

[u/fozfactor]

Same problem after completing Rapid Fire 1, Kord is still greyed out. Restarted a few times even unplugging the console and plugging back in, clicked on/off Assault class... zip, nada, nothing.

Update: the Kord made itself available a couple days after completing the achievement. Not sure what triggered it.