diff --git a/EXILED/Exiled.API/Features/Items/Firearm.cs b/EXILED/Exiled.API/Features/Items/Firearm.cs
index e77622d675..9be7967728 100644
--- a/EXILED/Exiled.API/Features/Items/Firearm.cs
+++ b/EXILED/Exiled.API/Features/Items/Firearm.cs
@@ -23,6 +23,7 @@ namespace Exiled.API.Features.Items
     using Extensions;
     using InventorySystem;
     using InventorySystem.Items;
+    using InventorySystem.Items.Autosync;
     using InventorySystem.Items.Firearms;
     using InventorySystem.Items.Firearms.Attachments;
     using InventorySystem.Items.Firearms.Attachments.Components;
@@ -690,6 +691,7 @@ public override Item Clone()
         /// <param name="newOwner">new <see cref="Firearm"/> owner.</param>
         internal override void ChangeOwner(Player oldOwner, Player newOwner)
         {
+            Base.InstantiationStatus = newOwner == Server.Host ? AutosyncInstantiationStatus.SimulatedInstance : AutosyncInstantiationStatus.InventoryInstance;
             Base.Owner = newOwner.ReferenceHub;
             Base._footprintCacheSet = false;
             foreach (ModuleBase module in Base.Modules)
diff --git a/EXILED/Exiled.API/Features/Items/FirearmModules/Barrel/PumpBarrelMagazine.cs b/EXILED/Exiled.API/Features/Items/FirearmModules/Barrel/PumpBarrelMagazine.cs
index 57ab59b08a..afeb1f3248 100644
--- a/EXILED/Exiled.API/Features/Items/FirearmModules/Barrel/PumpBarrelMagazine.cs
+++ b/EXILED/Exiled.API/Features/Items/FirearmModules/Barrel/PumpBarrelMagazine.cs
@@ -80,7 +80,7 @@ public override bool IsCocked
 
             set
             {
-                PumpBarrel.SyncCocked = MaxAmmo;
+                PumpBarrel.SyncCocked = value ? MaxAmmo : 0;
                 Resync();
             }
         }
diff --git a/EXILED/Exiled.API/Features/Items/FirearmModules/Primary/NormalMagazine.cs b/EXILED/Exiled.API/Features/Items/FirearmModules/Primary/NormalMagazine.cs
index dd8cfaa217..6c4bb19c28 100644
--- a/EXILED/Exiled.API/Features/Items/FirearmModules/Primary/NormalMagazine.cs
+++ b/EXILED/Exiled.API/Features/Items/FirearmModules/Primary/NormalMagazine.cs
@@ -43,6 +43,16 @@ public override int MaxAmmo
             set => MagazineModule._defaultCapacity = value;
         }
 
+        /// <inheritdoc/>
+        public override int Ammo
+        {
+            set
+            {
+                MagazineModule.SyncData[MagazineModule.ItemSerial] = Math.Max(value, 0) + 1;
+                Resync();
+            }
+        }
+
         /// <inheritdoc/>
         public override int ConstantMaxAmmo => MagazineModule._defaultCapacity;
 
diff --git a/EXILED/Exiled.API/Features/Items/Item.cs b/EXILED/Exiled.API/Features/Items/Item.cs
index c55a6e75ba..757e31f2c8 100644
--- a/EXILED/Exiled.API/Features/Items/Item.cs
+++ b/EXILED/Exiled.API/Features/Items/Item.cs
@@ -62,6 +62,8 @@ public Item(ItemBase itemBase)
                 ushort serial = ItemSerialGenerator.GenerateNext();
                 Serial = serial;
                 itemBase.OnAdded(null);
+                if (Base is ModularAutosyncItem syncItem)
+                    syncItem.InstantiationStatus = AutosyncInstantiationStatus.SimulatedInstance;
 #if DEBUG
                 Log.Debug($"{nameof(Item)}.ctor: Generating new serial number. Serial should now be: {serial}. // {Serial}");
 #endif
diff --git a/EXILED/Exiled.API/Features/Items/MicroHid.cs b/EXILED/Exiled.API/Features/Items/MicroHid.cs
index f83dab90d3..0495a3b3bc 100644
--- a/EXILED/Exiled.API/Features/Items/MicroHid.cs
+++ b/EXILED/Exiled.API/Features/Items/MicroHid.cs
@@ -12,6 +12,9 @@ namespace Exiled.API.Features.Items
 
     using Exiled.API.Features.Pickups;
     using Exiled.API.Interfaces;
+
+    using InventorySystem.Items.Autosync;
+    using InventorySystem.Items.Firearms.Modules;
     using InventorySystem.Items.MicroHID;
     using InventorySystem.Items.MicroHID.Modules;
 
@@ -214,5 +217,18 @@ public bool TryGetFireController<T>(MicroHidFiringMode firingMode, out T module)
         /// </summary>
         /// <returns>A string containing MicroHid-related data.</returns>
         public override string ToString() => $"{Type} ({Serial}) [{Weight}] *{Scale}* |{Energy}| -{State}-";
+
+        /// <inheritdoc/>
+        internal override void ChangeOwner(Player oldOwner, Player newOwner)
+        {
+            Base.Owner = newOwner.ReferenceHub;
+
+            for (int i = 0; i < Base.AllSubcomponents.Length; i++)
+            {
+                Base.AllSubcomponents[i].OnAdded();
+            }
+
+            Base.InstantiationStatus = newOwner == Server.Host ? AutosyncInstantiationStatus.SimulatedInstance : AutosyncInstantiationStatus.InventoryInstance;
+        }
     }
 }
\ No newline at end of file
diff --git a/EXILED/Exiled.API/Features/Room.cs b/EXILED/Exiled.API/Features/Room.cs
index 1af977bbd8..098340fa77 100644
--- a/EXILED/Exiled.API/Features/Room.cs
+++ b/EXILED/Exiled.API/Features/Room.cs
@@ -401,8 +401,8 @@ public void UnlockAll()
         /// Factory method to create and add a <see cref="Room"/> component to a Transform.
         /// We can add parameters to be set privately here.
         /// </summary>
-        /// <param name="roomIdentifier">The Game Object to attach the Room component to.</param>
-        internal static void CreateComponent(RoomIdentifier roomIdentifier) => roomIdentifier.gameObject.AddComponent<Room>();
+        /// <param name="baseRoom">The Game Object to attach the Room component to.</param>
+        internal static void CreateComponent(GameObject baseRoom) => baseRoom.AddComponent<Room>().InternalCreate();
 
         /// <summary>
         /// Factory method to complete all element inside a Room.
diff --git a/EXILED/Exiled.Events/Patches/Fixes/ServerHubMicroHidFix.cs b/EXILED/Exiled.Events/Patches/Fixes/ServerHubMicroHidFix.cs
new file mode 100644
index 0000000000..8bd604cb53
--- /dev/null
+++ b/EXILED/Exiled.Events/Patches/Fixes/ServerHubMicroHidFix.cs
@@ -0,0 +1,32 @@
+// -----------------------------------------------------------------------
+// <copyright file="ServerHubMicroHidFix.cs" company="ExMod Team">
+// Copyright (c) ExMod Team. All rights reserved.
+// Licensed under the CC BY-SA 3.0 license.
+// </copyright>
+// -----------------------------------------------------------------------
+
+namespace Exiled.Events.Patches.Fixes
+{
+#pragma warning disable SA1313
+    using API.Features.Items;
+    using Exiled.API.Features;
+
+    using HarmonyLib;
+
+    using InventorySystem.Items.Autosync;
+    using InventorySystem.Items.MicroHID.Modules;
+    using InventorySystem.Items.Pickups;
+    using InventorySystem.Items.Usables.Scp330;
+
+    /// <summary>
+    /// Patches <see cref="CycleSyncModule.Update()"/> to fix phantom <see cref="MicroHid"/> for <see cref="Item.Create(ItemType, API.Features.Player)"/>.
+    /// </summary>
+    [HarmonyPatch(typeof(CycleSyncModule), nameof(CycleSyncModule.Update))]
+    internal static class ServerHubMicroHidFix
+    {
+        private static bool Prefix(CycleSyncModule __instance)
+        {
+            return __instance.MicroHid.InstantiationStatus == AutosyncInstantiationStatus.InventoryInstance;
+        }
+    }
+}
diff --git a/EXILED/Exiled.Events/Patches/Generic/AmmoDrain.cs b/EXILED/Exiled.Events/Patches/Generic/AmmoDrain.cs
index cf51d62adc..0fb3c4669c 100644
--- a/EXILED/Exiled.Events/Patches/Generic/AmmoDrain.cs
+++ b/EXILED/Exiled.Events/Patches/Generic/AmmoDrain.cs
@@ -20,6 +20,7 @@ namespace Exiled.Events.Patches.Generic
 
     using HarmonyLib;
 
+    using InventorySystem;
     using InventorySystem.Items;
     using InventorySystem.Items.Firearms;
     using InventorySystem.Items.Firearms.Modules;
@@ -66,6 +67,22 @@ internal static IEnumerable<CodeInstruction> GetInstructions(LocalBuilder firear
             yield return new CodeInstruction(OpCodes.Nop).WithLabels(continueLabel);
         }
 
+        /// <summary>
+        /// Calculates modified ammo limit.
+        /// </summary>
+        /// <param name="ammoLimit">Current ammo limit for reloading.</param>
+        /// <param name="ammoDrain">Target <see cref="API.Features.Items.Firearm.AmmoDrain"/>.</param>
+        /// <returns>Modified ammo limit for reloading.</returns>
+        internal static int GetAmmoDrainLimit(int ammoLimit, int ammoDrain)
+        {
+            if (ammoDrain == 0)
+            {
+                return int.MaxValue;
+            }
+
+            return ammoLimit / ammoDrain;
+        }
+
         // that patch for open bolted firearms
         [HarmonyPatch(nameof(AutomaticActionModule.ServerShoot))]
         [HarmonyTranspiler]
@@ -89,7 +106,7 @@ private static IEnumerable<CodeInstruction> First(IEnumerable<CodeInstruction> c
             newInstructions.InsertRange(index, new CodeInstruction[]
                 {
                     new(OpCodes.Ldloc_S, ammoDrain.LocalIndex),
-                    new(OpCodes.Div),
+                    new(OpCodes.Call, Method(typeof(AmmoDrainAutomatic), nameof(AmmoDrainAutomatic.GetAmmoDrainLimit))),
                 });
 
             offset = 0;
@@ -131,7 +148,7 @@ private static IEnumerable<CodeInstruction> Second(IEnumerable<CodeInstruction>
             newInstructions.InsertRange(index, new CodeInstruction[]
                 {
                     new(OpCodes.Ldloc_S, ammoDrain.LocalIndex),
-                    new(OpCodes.Div),
+                    new(OpCodes.Call, Method(typeof(AmmoDrainAutomatic), nameof(AmmoDrainAutomatic.GetAmmoDrainLimit))),
                 });
 
             offset = 0;
@@ -177,7 +194,7 @@ private static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstructi
             newInstructions.InsertRange(index, new CodeInstruction[]
                 {
                     new(OpCodes.Ldloc_S, ammoDrain.LocalIndex),
-                    new(OpCodes.Div),
+                    new(OpCodes.Call, Method(typeof(AmmoDrainAutomatic), nameof(AmmoDrainAutomatic.GetAmmoDrainLimit))),
                 });
 
             offset = 0;
@@ -200,7 +217,7 @@ private static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstructi
     /// <summary>
     /// Patch for adding <see cref="API.Features.Items.Firearm.AmmoDrain"/> support for revolvers.
     /// </summary>
-    [HarmonyPatch(typeof(RevolverClipReloaderModule), nameof(RevolverClipReloaderModule.InsertAmmoFromClip))]
+    [HarmonyPatch(typeof(RevolverClipReloaderModule), nameof(RevolverClipReloaderModule.ServerWithholdAmmo))]
     internal class AmmoDrainRevolver
     {
         private static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> codeInstructions, ILGenerator generator)
@@ -224,17 +241,17 @@ private static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstructi
             newInstructions.InsertRange(index, new CodeInstruction[]
                 {
                     new(OpCodes.Ldloc_S, ammoDrain.LocalIndex),
-                    new(OpCodes.Mul),
+                    new(OpCodes.Call, Method(typeof(AmmoDrainAutomatic), nameof(AmmoDrainAutomatic.GetAmmoDrainLimit))),
                 });
 
             offset = 0;
-            index = newInstructions.FindIndex(i => i.Calls(Method(typeof(IPrimaryAmmoContainerModule), nameof(IPrimaryAmmoContainerModule.ServerModifyAmmo)))) + offset;
+            index = newInstructions.FindIndex(i => i.Calls(Method(typeof(InventoryExtensions), nameof(InventoryExtensions.ServerAddAmmo)))) + offset;
 
-            // and divide ammo that are inserting in magazine, to implement AmmoDrain
+            // and multiply ammo that are inserting in magazine, to implement AmmoDrain
             newInstructions.InsertRange(index, new CodeInstruction[]
                 {
                     new(OpCodes.Ldloc_S, ammoDrain.LocalIndex),
-                    new(OpCodes.Div),
+                    new(OpCodes.Mul),
                 });
 
             for (int z = 0; z < newInstructions.Count; z++)
diff --git a/EXILED/Exiled.Events/Patches/Generic/RoomLightControllersList.cs b/EXILED/Exiled.Events/Patches/Generic/RoomLightControllersList.cs
index 129585e268..d27b7d9332 100644
--- a/EXILED/Exiled.Events/Patches/Generic/RoomLightControllersList.cs
+++ b/EXILED/Exiled.Events/Patches/Generic/RoomLightControllersList.cs
@@ -9,7 +9,6 @@ namespace Exiled.Events.Patches.Generic
 {
     using Exiled.API.Features;
 #pragma warning disable SA1313
-#pragma warning disable SA1402
 
     using HarmonyLib;
 
@@ -24,16 +23,4 @@ private static void Postfix(RoomLightController __instance)
             Room.Get(__instance.Room).RoomLightControllersValue.Add(__instance);
         }
     }
-
-    /// <summary>
-    /// Patch for removing <see cref="RoomLightController"/> to list.
-    /// </summary>
-    [HarmonyPatch(typeof(RoomLightController), nameof(RoomLightController.OnDestroy))]
-    internal class RoomLightControllersList2
-    {
-        private static void Postfix(RoomLightController __instance)
-        {
-            Room.Get(__instance.Room).RoomLightControllersValue.Remove(__instance);
-        }
-    }
 }
\ No newline at end of file
diff --git a/EXILED/Exiled.Events/Patches/Generic/RoomList.cs b/EXILED/Exiled.Events/Patches/Generic/RoomList.cs
index 53f6ada70d..037103be04 100644
--- a/EXILED/Exiled.Events/Patches/Generic/RoomList.cs
+++ b/EXILED/Exiled.Events/Patches/Generic/RoomList.cs
@@ -44,8 +44,7 @@ private static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstructi
                 {
                     new CodeInstruction(OpCodes.Ldarg_0).MoveLabelsFrom(newInstructions[index]),
                     new(OpCodes.Callvirt, PropertyGetter(typeof(Component), nameof(Component.gameObject))),
-                    new(OpCodes.Callvirt, Method(typeof(Room), nameof(Room.FindParentRoom), new System.Type[] { typeof(GameObject) })),
-                    new(OpCodes.Callvirt, Method(typeof(Room), nameof(Room.InternalCreate))),
+                    new(OpCodes.Callvirt, Method(typeof(Room), nameof(Room.CreateComponent))),
                 });
 
             for (int z = 0; z < newInstructions.Count; z++)
@@ -55,18 +54,6 @@ private static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstructi
         }
     }
 
-    /// <summary>
-    /// Patches <see cref="RoomIdentifier.Awake"/>.
-    /// </summary>
-    [HarmonyPatch(typeof(RoomIdentifier), nameof(RoomIdentifier.Awake))]
-    internal class RoomListAdd
-    {
-        private static void Postfix(RoomIdentifier __instance)
-        {
-            Room.CreateComponent(__instance);
-        }
-    }
-
     /// <summary>
     /// Patches <see cref="RoomIdentifier.OnDestroy"/>.
     /// </summary>