diff --git a/src/main/java/com/atsuishio/superbwarfare/event/ClientMouseHandler.java b/src/main/java/com/atsuishio/superbwarfare/event/ClientMouseHandler.java
index d9d89c2d1..5897cf53c 100644
--- a/src/main/java/com/atsuishio/superbwarfare/event/ClientMouseHandler.java
+++ b/src/main/java/com/atsuishio/superbwarfare/event/ClientMouseHandler.java
@@ -123,7 +123,7 @@ public class ClientMouseHandler {
         ItemStack stack = mc.player.getMainHandItem();
         if (stack.getItem() instanceof GunItem) {
             var data = GunData.from(stack);
-            float customSens = (float) data.tag.getInt("sensitivity");
+            float customSens = data.sensitivity.get();
 
             if (!player.getMainHandItem().isEmpty() && mc.options.getCameraType() == CameraType.FIRST_PERSON) {
                 return original / Math.max((1 + (0.2 * (data.zoom() - (0.3 * customSens)) * ClientEventHandler.zoomTime)), 0.1);
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/data/GunData.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/data/GunData.java
index f6d6b0ef7..c86d8bec9 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/data/GunData.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/data/GunData.java
@@ -76,6 +76,7 @@ public class GunData {
         holdOpen = new BooleanValue(data, "HoldOpen");
         hideBulletChain = new BooleanValue(data, "HideBulletChain");
         draw = new BooleanValue(data, "Draw");
+        sensitivity = new IntValue(data, "Sensitivity");
     }
 
     private CompoundTag getOrPut(String name) {
@@ -458,6 +459,7 @@ public class GunData {
     public final BooleanValue holdOpen;
     public final BooleanValue hideBulletChain;
     public final BooleanValue draw;
+    public final IntValue sensitivity;
 
     // 其他子级属性
 
diff --git a/src/main/java/com/atsuishio/superbwarfare/network/message/send/SensitivityMessage.java b/src/main/java/com/atsuishio/superbwarfare/network/message/send/SensitivityMessage.java
index 598f95264..a388810d7 100644
--- a/src/main/java/com/atsuishio/superbwarfare/network/message/send/SensitivityMessage.java
+++ b/src/main/java/com/atsuishio/superbwarfare/network/message/send/SensitivityMessage.java
@@ -28,15 +28,13 @@ public record SensitivityMessage(boolean isAdd) implements CustomPacketPayload {
         if (!(stack.getItem() instanceof GunItem)) return;
 
         var data = GunData.from(stack);
-        final var tag = data.tag();
         if (message.isAdd) {
-            tag.putInt("sensitivity", Math.min(10, tag.getInt("sensitivity") + 1));
+            data.sensitivity.set(Math.min(10, data.sensitivity.get() + 1));
         } else {
-            tag.putInt("sensitivity", Math.max(-10, tag.getInt("sensitivity") - 1));
+            data.sensitivity.set(Math.max(-10, data.sensitivity.get() - 1));
         }
         data.save();
-        player.displayClientMessage(Component.translatable("tips.superbwarfare.sensitivity", tag.getInt("sensitivity")), true);
-
+        player.displayClientMessage(Component.translatable("tips.superbwarfare.sensitivity", data.sensitivity.get()), true);
     }
 
     @Override