this should work

[strteamservidores]

the arms are not changing.

"Store"
{
    "★ Luvas Personalizadas"
    {
        "Karachenko"
        {
            "model" "models/weapons/v_models/arms/karachenko/karachenko.mdl"
            "team" "4"
            "type" "arms"
            "unique_id" "karachenko"
            "Plans"
            {
                "1 Dia"
                {
                    "price" "2500"
                    "time"  "86400"
                }
                "Permanente"
                {
                    "price" "9000"
                }
            }
        }
    }
}