[30,        // Delay, in seconds
{
private _fnc_isValid =
{
    private _linkedItems = configFile >> "CfgWeapons" >> _this >> "LinkedItems";

    private _isValid = true;
    {
        if !((getText (_linkedItems >> _x >> "item")) isEqualTo "") exitWith {_isValid = false};
    } forEach ["LinkedItemsOptic","LinkedItemsAcc","LinkedItemsMuzzle","LinkedItemsUnder"];

    _isValid
};
private _fnc_getLoadedMags =
{
    private _loadedMags = [];
    {
        if ((_x select 3) isEqualTo _this) then
        {
            _loadedMags pushBack [_x select 0,_x select 1];
        };
    } forEach (magazinesAmmoFull player);
    _loadedMags
};

private _primary = primaryWeapon player;
if (!(_primary isEqualTo "") && {!(_primary call _fnc_isValid)}) then
{
    private _replacement = "";

    {
        if ((configName _x) call _fnc_isValid) exitWith {_replacement = configName _x;};
    } forEach ((configFile >> "CfgWeapons" >> _primary) call BIS_fnc_returnParents);


    if (isText (configFile >> "CfgWeapons" >> _replacement >> "displayName")) then      // This bit ensures that the replacement weapon is an actual weapon, and not just a base class.
    {
        private _currentWeaponItems = primaryWeaponItems player;
        private _loadedMags_Original = 1 call _fnc_getLoadedMags;

        private _currentWeapon = currentWeapon player;

        player removeWeapon _primary;
        player addWeapon _replacement;

        private _loadedMags_Replacement = 1 call _fnc_getLoadedMags;

        if (_currentWeapon isEqualTo _primary) then
        {
            player selectWeapon _replacement;
        };

        {
            if !(_x isEqualTo "") then
            {
                player addPrimaryWeaponItem _x;
            };
        } forEach _currentWeaponItems;

        {
            player addWeaponItem [_replacement, _x];
        } forEach _loadedMags_Original;

        {player addMagazine _x} forEach _loadedMags_Replacement;
    };
};

private _handgun = handgunWeapon player;
if (!(_handgun isEqualTo "") && {!(_handgun call _fnc_isValid)}) then
{
    private _replacement = "";

    {
        if ((configName _x) call _fnc_isValid) exitWith {_replacement = configName _x;};
    } forEach ((configFile >> "CfgWeapons" >> _handgun) call BIS_fnc_returnParents);


    if (isText (configFile >> "CfgWeapons" >> _replacement >> "displayName")) then
    {
        private _currentWeaponItems = handgunItems player;
        private _loadedMags_Original = 2 call _fnc_getLoadedMags;

        private _currentWeapon = currentWeapon player;

        player removeWeapon _handgun;
        player addWeapon _replacement;

        private _loadedMags_Replacement = 2 call _fnc_getLoadedMags;

        if (_currentWeapon isEqualTo _handgun) then
        {
            player selectWeapon _replacement;
        };

        {
            if !(_x isEqualTo "") then
            {
                player addHandgunItem _x;
            };
        } forEach _currentWeaponItems;

        {
            player addWeaponItem [_replacement, _x];
        } forEach _loadedMags_Original;

        {player addMagazine _x} forEach _loadedMags_Replacement;
    };
};
},[],true] call ExileClient_system_thread_addTask;