Wicked Grin never appeared in the shooter's internal store.
Battlefield Studios, without announcements or much fanfare, removed the Wicked Grin skin for the Pax Armata PMC assault trooper from Battlefield 6. The bright blue camouflage, which was supposed to appear in the game with the start of the first season, never made it to the internal store.
According to players, this may depend on the region, but most likely the skin has either been removed forever, or will be reworked, making the colors less flashy.
At one time, it was Wicked Grin that caused the most heated discussions on the topic of the developers' creative vision and the promised groundedness of cosmetic sets. It got to the point that some even refused to save teammates using this skin.