diff --git a/addons/ui/fnc_preload3DEN.sqf b/addons/ui/fnc_preload3DEN.sqf
index d53e47199..4938fc2b1 100644
--- a/addons/ui/fnc_preload3DEN.sqf
+++ b/addons/ui/fnc_preload3DEN.sqf
@@ -73,6 +73,23 @@ private _cfgMagazines = configFile >> "CfgMagazines";
 private _magazines = [];
 private _magazinesLists = [];
 
+// cache magwells
+private _magwells = call CBA_fnc_createNamespace;
+
+{
+    private _magazines = [];
+
+    {
+        if (isArray _x) then {
+            _magazines append getArray _x;
+        };
+    } forEach configProperties [_x];
+
+    _magwells setVariable [configName _x, _magazines];
+} forEach ("true" configClasses (configFile >> "CfgMagazineWells"));
+
+private _cache = [];
+
 {
     private _item = toLower configName _x;
     (_item call BIS_fnc_itemType) params ["_itemCategory", "_itemType"];
@@ -93,7 +110,7 @@ private _magazinesLists = [];
                     _displayName,
                     getText (_cfgWeapons >> getText (_x >> "item") >> "displayName")
                 ];
-            } forEach ("true" configClasses (_weaponConfig >> "linkeditems")); //configProperties [_weaponConfig >> "linkeditems", "isClass _x"];
+            } forEach configProperties [_weaponConfig >> "linkeditems", "isClass _x"];
 
             _listItem pushBack [
                 _displayName,
@@ -114,31 +131,41 @@ private _magazinesLists = [];
                 };
 
                 private _compatibleMagazines = getArray (_muzzleConfig >> "magazines");
-                {
+
+                private _magWell = getArray (_muzzleConfig >> "magazineWell");
+                if (isNil {_magwells getVariable str _magWell}) then {
+                    private _magazines = [];
+
                     {
-                        _compatibleMagazines append getArray _x;
-                    } forEach configProperties [configFile >> "CfgMagazineWells" >> _x, "isArray _x"];
-                } foreach getArray (_muzzleConfig >> "magazineWell");
-
-                {
-                    private _item = toLower _x;
-
-                    if (_magazinesLists pushBackUnique [_item, _listItem] != -1) then {
-                        private _magazineConfig = _cfgMagazines >> _item;
-
-                        if (getNumber (_magazineConfig >> "scope") == 2) then {
-                            _listItem pushBack [
-                                getText (_magazineConfig >> "displayName"),
-                                _item,
-                                getText (_magazineConfig >> "picture"),
-                                2,
-                                _item in _magazines
-                            ];
-
-                            _magazines pushBack _item;
+                        _magazines append (_magwells getVariable [_x, []]);
+                    } forEach _magWell;
+
+                    _magwells setVariable [str _magWell, _magazines];
+                };
+
+                _compatibleMagazines append (_magwells getVariable str _magWell);
+
+                if (_cache pushBackUnique [_compatibleMagazines, _listItem] != -1) then {
+                    {
+                        private _item = toLower _x;
+
+                        if (_magazinesLists pushBackUnique [_item, _listItem] != -1) then {
+                            private _magazineConfig = _cfgMagazines >> _item;
+
+                            if (getNumber (_magazineConfig >> "scope") == 2) then {
+                                _listItem pushBack [
+                                    getText (_magazineConfig >> "displayName"),
+                                    _item,
+                                    getText (_magazineConfig >> "picture"),
+                                    2,
+                                    _item in _magazines
+                                ];
+
+                                _magazines pushBack _item;
+                            };
                         };
-                    };
-                } forEach _compatibleMagazines;
+                    } forEach _compatibleMagazines;
+                };
             } forEach getArray (_weaponConfig >> "muzzles");
         };
     };
@@ -187,5 +214,6 @@ private _listHeadgear = _list select 10;
 } forEach ("true" configClasses (configFile >> "CfgGlasses"));
 
 _itemTypes call CBA_fnc_deleteNamespace;
+_magwells call CBA_fnc_deleteNamespace;
 
 true
diff --git a/addons/ui/fnc_preloadCurator.sqf b/addons/ui/fnc_preloadCurator.sqf
index 1c936dad8..908e1ebb6 100644
--- a/addons/ui/fnc_preloadCurator.sqf
+++ b/addons/ui/fnc_preloadCurator.sqf
@@ -75,6 +75,23 @@ private _cfgMagazines = configFile >> "CfgMagazines";
 private _magazines = [];
 private _magazinesLists = [];
 
+// cache magwells
+private _magwells = call CBA_fnc_createNamespace;
+
+{
+    private _magazines = [];
+
+    {
+        if (isArray _x) then {
+            _magazines append getArray _x;
+        };
+    } forEach configProperties [_x];
+
+    _magwells setVariable [configName _x, _magazines];
+} forEach ("true" configClasses (configFile >> "CfgMagazineWells"));
+
+private _cache = [];
+
 {
     private _patchConfig = _cfgPatches >> _x;
     _addon = toLower _x;
@@ -101,7 +118,7 @@ private _magazinesLists = [];
                         _displayName,
                         getText (_cfgWeapons >> getText (_x >> "item") >> "displayName")
                     ];
-                } forEach ("true" configClasses (_weaponConfig >> "linkeditems")); //configProperties [_weaponConfig >> "linkeditems", "isClass _x"];
+                } forEach configProperties [_weaponConfig >> "linkeditems", "isClass _x"];
 
                 private _displayNameShort = _displayName;
                 private _displayNameShortArray = toArray _displayNameShort;
@@ -131,34 +148,44 @@ private _magazinesLists = [];
                     };
 
                     private _compatibleMagazines = getArray (_muzzleConfig >> "magazines");
-                    {
+
+                    private _magWell = getArray (_muzzleConfig >> "magazineWell");
+                    if (isNil {_magwells getVariable str _magWell}) then {
+                        private _magazines = [];
+
                         {
-                            _compatibleMagazines append getArray _x;
-                        } forEach configProperties [configFile >> "CfgMagazineWells" >> _x, "isArray _x"];
-                    } foreach getArray (_muzzleConfig >> "magazineWell");
+                            _magazines append (_magwells getVariable [_x, []]);
+                        } forEach _magWell;
 
-                    {
-                        private _item = toLower _x;
+                        _magwells setVariable [str _magWell, _magazines];
+                    };
 
-                        if (_magazinesLists pushBackUnique [_item, _listItem] != -1) then {
-                            private _magazineConfig = _cfgMagazines >> _item;
+                    _compatibleMagazines append (_magwells getVariable str _magWell);
 
-                            if (getNumber (_magazineConfig >> "scope") == 2) then {
-                                private _displayName = getText (_magazineConfig >> "displayName");
+                    if (_cache pushBackUnique [_compatibleMagazines, _listItem] != -1) then {
+                        {
+                            private _item = toLower _x;
 
-                                _listItem pushBack [
-                                    _displayName,
-                                    _displayName,
-                                    _item,
-                                    getText (_magazineConfig >> "picture"),
-                                    2,
-                                    _item in _magazines
-                                ];
+                            if (_magazinesLists pushBackUnique [_item, _listItem] != -1) then {
+                                private _magazineConfig = _cfgMagazines >> _item;
 
-                                _magazines pushBack _item;
+                                if (getNumber (_magazineConfig >> "scope") == 2) then {
+                                    private _displayName = getText (_magazineConfig >> "displayName");
+
+                                    _listItem pushBack [
+                                        _displayName,
+                                        _displayName,
+                                        _item,
+                                        getText (_magazineConfig >> "picture"),
+                                        2,
+                                        _item in _magazines
+                                    ];
+
+                                    _magazines pushBack _item;
+                                };
                             };
-                        };
-                    } forEach _compatibleMagazines;
+                        } forEach _compatibleMagazines;
+                    };
                 } forEach getArray (_weaponConfig >> "muzzles");
             };
         };
@@ -199,5 +226,6 @@ private _magazinesLists = [];
 } forEach call (uiNamespace getVariable QEGVAR(common,addons));
 
 _itemTypes call CBA_fnc_deleteNamespace;
+_magwells call CBA_fnc_deleteNamespace;
 
 true
diff --git a/addons/ui/test_preload.sqf b/addons/ui/test_preload.sqf
index fd692af73..641a28a92 100644
--- a/addons/ui/test_preload.sqf
+++ b/addons/ui/test_preload.sqf
@@ -8,8 +8,6 @@ if (!canSuspend) exitWith {
 isNil {
     with uiNamespace do {
         // 3DEN
-        TEST_DEFINED(QFUNC(preload3DEN),"");
-
         AmmoBox_list = nil;
         ["onLoad", [controlNull]] call compile preprocessFile "\a3\3den\UI\Attributes\AmmoBox.sqf";
     };
@@ -19,6 +17,9 @@ waitUntil {!isNil {uiNamespace getVariable "AmmoBox_list"}};
 
 isNil {
     with uiNamespace do {
+        // 3DEN
+        TEST_DEFINED(QFUNC(preload3DEN),"");
+
         private _vanilla = AmmoBox_list;
 
         AmmoBox_list = nil;
@@ -37,6 +38,7 @@ isNil {
         private _curator = getAssignedCuratorLogic _unit;
 
         if (isNull _curator) then {
+            activateAddons call EGVAR(common,addons);
             _curator = createGroup sideLogic createUnit ["ModuleCurator_F", [0,0,0], [], 0, "NONE"];
             _unit assignCurator _curator;
         };