diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/M60ItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/M60ItemModel.java
index f7a57d4f9..31034c6b6 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/M60ItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/M60ItemModel.java
@@ -58,32 +58,33 @@ public class M60ItemModel extends GeoModel<M60Item> {
         }
 
         int ammo = GunsTool.getGunIntTag(stack, "Ammo", 0);
+        boolean flag = GunsTool.getGunBooleanTag(stack, "HideBulletChain");
 
-        if (ammo < 5 && stack.getOrCreateTag().getBoolean("HideBulletChain")) {
+        if (ammo < 5 && flag) {
             b5.setScaleX(0);
             b5.setScaleY(0);
             b5.setScaleZ(0);
         }
 
-        if (ammo < 4 && stack.getOrCreateTag().getBoolean("HideBulletChain")) {
+        if (ammo < 4 && flag) {
             b4.setScaleX(0);
             b4.setScaleY(0);
             b4.setScaleZ(0);
         }
 
-        if (ammo < 3 && stack.getOrCreateTag().getBoolean("HideBulletChain")) {
+        if (ammo < 3 && flag) {
             b3.setScaleX(0);
             b3.setScaleY(0);
             b3.setScaleZ(0);
         }
 
-        if (ammo < 2 && stack.getOrCreateTag().getBoolean("HideBulletChain")) {
+        if (ammo < 2 && flag) {
             b2.setScaleX(0);
             b2.setScaleY(0);
             b2.setScaleZ(0);
         }
 
-        if (ammo < 1 && stack.getOrCreateTag().getBoolean("HideBulletChain")) {
+        if (ammo < 1 && flag) {
             b1.setScaleX(0);
             b1.setScaleY(0);
             b1.setScaleZ(0);
diff --git a/src/main/java/com/atsuishio/superbwarfare/event/GunEventHandler.java b/src/main/java/com/atsuishio/superbwarfare/event/GunEventHandler.java
index db08f872a..df694687c 100644
--- a/src/main/java/com/atsuishio/superbwarfare/event/GunEventHandler.java
+++ b/src/main/java/com/atsuishio/superbwarfare/event/GunEventHandler.java
@@ -364,7 +364,7 @@ public class GunEventHandler {
 
         if (stack.getItem() == ModItems.M_60.get()) {
             if (data.getInt("ReloadTime") == 55) {
-                tag.putBoolean("HideBulletChain", false);
+                data.putBoolean("HideBulletChain", false);
             }
         }
 
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/machinegun/M60Item.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/machinegun/M60Item.java
index 984c1e945..23b041abd 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/machinegun/M60Item.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/machinegun/M60Item.java
@@ -134,15 +134,15 @@ public class M60Item extends GunItem implements GeoItem, AnimatedItem {
     }
 
     @Override
-    public void inventoryTick(ItemStack itemstack, Level level, Entity entity, int slot, boolean selected) {
-        if (itemstack.getOrCreateTag().getBoolean("draw")) {
-            itemstack.getOrCreateTag().putBoolean("draw", false);
+    public void inventoryTick(ItemStack stack, Level level, Entity entity, int slot, boolean selected) {
+        if (stack.getOrCreateTag().getBoolean("draw")) {
+            stack.getOrCreateTag().putBoolean("draw", false);
 
-            if (GunsTool.getGunIntTag(itemstack, "Ammo", 0) <= 5) {
-                itemstack.getOrCreateTag().putBoolean("HideBulletChain", true);
+            if (GunsTool.getGunIntTag(stack, "Ammo", 0) <= 5) {
+                GunsTool.setGunBooleanTag(stack, "HideBulletChain", true);
             }
         }
-        super.inventoryTick(itemstack, level, entity, slot, selected);
+        super.inventoryTick(stack, level, entity, slot, selected);
     }
 
     @Override
diff --git a/src/main/java/com/atsuishio/superbwarfare/network/message/ShootMessage.java b/src/main/java/com/atsuishio/superbwarfare/network/message/ShootMessage.java
index ca7b4115b..2caa1e676 100644
--- a/src/main/java/com/atsuishio/superbwarfare/network/message/ShootMessage.java
+++ b/src/main/java/com/atsuishio/superbwarfare/network/message/ShootMessage.java
@@ -75,7 +75,7 @@ public class ShootMessage {
                 stack.getOrCreateTag().putDouble("empty", 1);
 
                 if (stack.getItem() == ModItems.M_60.get() && GunsTool.getGunIntTag(stack, "Ammo", 0) <= 5) {
-                    stack.getOrCreateTag().putBoolean("HideBulletChain", true);
+                    GunsTool.setGunBooleanTag(stack, "HideBulletChain", true);
                 }
 
                 if (stack.getItem() == ModItems.ABEKIRI.get()) {