diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/AK12ItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/AK12ItemModel.java
index 14e24942e..2f344d899 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/AK12ItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/AK12ItemModel.java
@@ -74,7 +74,6 @@ public class AK12ItemModel extends GeoModel<AK12Item> {
         double fr = ClientEventHandler.fireRot;
 
         var data = GunData.from(stack);
-        var tag = data.tag();
         int type = data.attachment.get(AttachmentType.SCOPE);
 
         float posY = switch (type) {
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/Glock17ItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/Glock17ItemModel.java
index 2c9a1d3d3..d56c9455e 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/Glock17ItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/Glock17ItemModel.java
@@ -7,7 +7,6 @@ import com.atsuishio.superbwarfare.event.ClientEventHandler;
 import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.item.gun.handgun.Glock17Item;
-import com.atsuishio.superbwarfare.tools.GunsTool;
 import net.minecraft.client.Minecraft;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.Mth;
@@ -104,7 +103,6 @@ public class Glock17ItemModel extends GeoModel<Glock17Item> {
         float numP = (float) (1 - 0.68 * zt);
 
         var data = GunData.from(stack);
-        var tag = data.tag();
 
         if (data.reload.time() > 0) {
             main.setRotX(numR * main.getRotX());
@@ -123,7 +121,7 @@ public class Glock17ItemModel extends GeoModel<Glock17Item> {
 
         GeoBone shell = getAnimationProcessor().getBone("shell");
         GeoBone barrel = getAnimationProcessor().getBone("guan");
-        if (GunsTool.getGunBooleanTag(tag, "HoldOpen")) {
+        if (data.holdOpen.get()) {
             slide.setPosZ(1.5f);
             barrel.setRotX(4 * Mth.DEG_TO_RAD);
             bullet.setScaleX(0);
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/Glock18ItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/Glock18ItemModel.java
index 35ef18480..102f9d882 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/Glock18ItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/Glock18ItemModel.java
@@ -7,7 +7,6 @@ import com.atsuishio.superbwarfare.event.ClientEventHandler;
 import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.item.gun.handgun.Glock18Item;
-import com.atsuishio.superbwarfare.tools.GunsTool;
 import net.minecraft.client.Minecraft;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.Mth;
@@ -48,7 +47,6 @@ public class Glock18ItemModel extends GeoModel<Glock18Item> {
         if (!stack.is(ModTags.Items.GUN)) return;
 
         var data = GunData.from(stack);
-        var tag = data.tag();
         int mode = data.fireMode.get();
         if (mode == 0) {
             switch_.setRotX(35 * Mth.DEG_TO_RAD);
@@ -132,7 +130,7 @@ public class Glock18ItemModel extends GeoModel<Glock18Item> {
 
         GeoBone shell = getAnimationProcessor().getBone("shell");
         GeoBone barrel = getAnimationProcessor().getBone("guan");
-        if (GunsTool.getGunBooleanTag(tag, "HoldOpen")) {
+        if (data.holdOpen.get()) {
             slide.setPosZ(1.5f);
             barrel.setRotX(4 * Mth.DEG_TO_RAD);
             bullet.setScaleX(0);
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/M1911ItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/M1911ItemModel.java
index 6e4e414cc..01b86addf 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/M1911ItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/M1911ItemModel.java
@@ -7,7 +7,6 @@ import com.atsuishio.superbwarfare.event.ClientEventHandler;
 import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.item.gun.handgun.M1911Item;
-import com.atsuishio.superbwarfare.tools.GunsTool;
 import net.minecraft.client.Minecraft;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.Mth;
@@ -106,7 +105,6 @@ public class M1911ItemModel extends GeoModel<M1911Item> {
         float numP = (float) (1 - 0.68 * zt);
 
         var data = GunData.from(stack);
-        var tag = data.tag();
         if (data.reload.time() > 0) {
             main.setRotX(numR * main.getRotX());
             main.setRotY(numR * main.getRotY());
@@ -123,7 +121,7 @@ public class M1911ItemModel extends GeoModel<M1911Item> {
         AnimationHelper.handleShellsAnimation(getAnimationProcessor(), 0.7f, 1f);
         GeoBone shell = getAnimationProcessor().getBone("shell");
 
-        if (GunsTool.getGunBooleanTag(tag, "HoldOpen")) {
+        if (data.holdOpen.get()) {
             slide.setPosZ(1.5f);
             bullet.setScaleX(0);
             bullet.setScaleY(0);
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 133690e25..8dafb3426 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
@@ -7,7 +7,6 @@ import com.atsuishio.superbwarfare.event.ClientEventHandler;
 import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.item.gun.machinegun.M60Item;
-import com.atsuishio.superbwarfare.tools.GunsTool;
 import net.minecraft.client.Minecraft;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.Mth;
@@ -60,9 +59,8 @@ public class M60ItemModel extends GeoModel<M60Item> {
         }
 
         var data = GunData.from(stack);
-        var tag = data.tag();
         int ammo = data.ammo.get();
-        boolean flag = GunsTool.getGunBooleanTag(tag, "HideBulletChain");
+        boolean flag = data.hideBulletChain.get();
 
         if (ammo < 5 && flag) {
             b5.setScaleX(0);
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/Mk14ItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/Mk14ItemModel.java
index 1477c3721..353d2b556 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/Mk14ItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/Mk14ItemModel.java
@@ -166,7 +166,7 @@ public class Mk14ItemModel extends GeoModel<Mk14Item> {
 
         GeoBone shell = getAnimationProcessor().getBone("shell");
 
-        if (data.data().getBoolean("HoldOpen")) {
+        if (data.holdOpen.get()) {
             action.setPosZ(2.5f);
             shell.setScaleX(0);
             shell.setScaleY(0);
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/Mp443ItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/Mp443ItemModel.java
index 394eb5611..bc4eeeb9f 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/Mp443ItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/Mp443ItemModel.java
@@ -7,7 +7,6 @@ import com.atsuishio.superbwarfare.event.ClientEventHandler;
 import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.item.gun.handgun.Mp443Item;
-import com.atsuishio.superbwarfare.tools.GunsTool;
 import net.minecraft.client.Minecraft;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.Mth;
@@ -103,7 +102,6 @@ public class Mp443ItemModel extends GeoModel<Mp443Item> {
         float numP = (float) (1 - 0.68 * zt);
 
         var data = GunData.from(stack);
-        var tag = data.tag();
         if (data.reload.time() > 0) {
             main.setRotX(numR * main.getRotX());
             main.setRotY(numR * main.getRotY());
@@ -121,7 +119,7 @@ public class Mp443ItemModel extends GeoModel<Mp443Item> {
 
         GeoBone shell = getAnimationProcessor().getBone("shell");
 
-        if (GunsTool.getGunBooleanTag(tag, "HoldOpen")) {
+        if (data.holdOpen.get()) {
             slide.setPosZ(1.5f);
             bullet.setScaleX(0);
             bullet.setScaleY(0);
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/Qbz95ItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/Qbz95ItemModel.java
index c9b686d91..f465eb98c 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/Qbz95ItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/Qbz95ItemModel.java
@@ -8,7 +8,6 @@ import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.item.gun.data.value.AttachmentType;
 import com.atsuishio.superbwarfare.item.gun.rifle.Qbz95Item;
-import com.atsuishio.superbwarfare.tools.GunsTool;
 import net.minecraft.client.Minecraft;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.Mth;
@@ -85,7 +84,6 @@ public class Qbz95ItemModel extends GeoModel<Qbz95Item> {
         double fr = ClientEventHandler.fireRot;
 
         var data = GunData.from(stack);
-        var tag = data.tag();
         int type = data.attachment.get(AttachmentType.SCOPE);
 
         float posYAlt = switch (type) {
@@ -169,7 +167,7 @@ public class Qbz95ItemModel extends GeoModel<Qbz95Item> {
         l.setRotX(rotXBipod * Mth.DEG_TO_RAD);
         r.setRotX(rotXBipod * Mth.DEG_TO_RAD);
 
-        if (GunsTool.getGunBooleanTag(tag, "HoldOpen")) {
+        if (data.holdOpen.get()) {
             bolt.setPosZ(5f);
         }
 
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/RpkItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/RpkItemModel.java
index dcca391ab..8a34e3d3a 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/RpkItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/RpkItemModel.java
@@ -71,8 +71,6 @@ public class RpkItemModel extends GeoModel<RpkItem> {
         double fp = ClientEventHandler.firePos;
         double fr = ClientEventHandler.fireRot;
 
-        var data = GunData.from(stack);
-        var tag = data.tag();
         int type = GunData.from(stack).attachment.get(AttachmentType.SCOPE);
 
         float posYAlt = switch (type) {
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/SecondaryCataclysmModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/SecondaryCataclysmModel.java
index 71f2d8b9f..1013ff773 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/SecondaryCataclysmModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/SecondaryCataclysmModel.java
@@ -100,7 +100,6 @@ public class SecondaryCataclysmModel extends GeoModel<SecondaryCataclysm> {
         float numP = (float) (1 - 0.68 * zt);
 
         var data = GunData.from(stack);
-        var tag = data.tag();
         if (data.reload.time() > 0) {
             main.setRotX(numR * main.getRotX());
             main.setRotY(numR * main.getRotY());
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/SksItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/SksItemModel.java
index 53960e20e..160bbe992 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/SksItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/SksItemModel.java
@@ -7,7 +7,6 @@ import com.atsuishio.superbwarfare.event.ClientEventHandler;
 import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.item.gun.rifle.SksItem;
-import com.atsuishio.superbwarfare.tools.GunsTool;
 import net.minecraft.client.Minecraft;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.Mth;
@@ -69,7 +68,6 @@ public class SksItemModel extends GeoModel<SksItem> {
         gun.setRotZ((float) (0.05f * zpz));
 
         var data = GunData.from(stack);
-        var tag = data.tag();
 
         GeoBone shen = getAnimationProcessor().getBone("shen");
 
@@ -110,7 +108,7 @@ public class SksItemModel extends GeoModel<SksItem> {
         AnimationHelper.handleShellsAnimation(getAnimationProcessor(), 0.7f, 1.2f);
         GeoBone shell = getAnimationProcessor().getBone("shell");
 
-        if (GunsTool.getGunBooleanTag(tag, "HoldOpen")) {
+        if (data.holdOpen.get()) {
             shell.setScaleX(0);
             shell.setScaleY(0);
             shell.setScaleZ(0);
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/SvdItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/SvdItemModel.java
index 64fba7e1b..319919043 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/SvdItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/SvdItemModel.java
@@ -8,7 +8,6 @@ import com.atsuishio.superbwarfare.init.ModTags;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.item.gun.data.value.AttachmentType;
 import com.atsuishio.superbwarfare.item.gun.sniper.SvdItem;
-import com.atsuishio.superbwarfare.tools.GunsTool;
 import net.minecraft.client.Minecraft;
 import net.minecraft.resources.ResourceLocation;
 import net.minecraft.util.Mth;
@@ -112,7 +111,6 @@ public class SvdItemModel extends GeoModel<SvdItem> {
         cross3.setScaleY((float) (1f + (0.1 * zp)));
 
         var data = GunData.from(stack);
-        var tag = data.tag();
 
         GeoBone shen;
         if (zt < 0.5) {
@@ -148,7 +146,7 @@ public class SvdItemModel extends GeoModel<SvdItem> {
 
         bolt.setPosZ(4.5f * (float) fp);
 
-        if (GunsTool.getGunBooleanTag(tag, "HoldOpen")) {
+        if (data.holdOpen.get()) {
             bolt.setPosZ(3.5f);
         }
 
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/model/item/VectorItemModel.java b/src/main/java/com/atsuishio/superbwarfare/client/model/item/VectorItemModel.java
index 23ab7b653..6b410c7bf 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/model/item/VectorItemModel.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/model/item/VectorItemModel.java
@@ -56,7 +56,6 @@ public class VectorItemModel extends GeoModel<VectorItem> {
         if (!stack.is(ModTags.Items.GUN)) return;
 
         var data = GunData.from(stack);
-        var tag = data.tag();
         int mode = data.fireMode.get();
         if (mode == 0) {
             kmj.setRotX(-120 * Mth.DEG_TO_RAD);
diff --git a/src/main/java/com/atsuishio/superbwarfare/client/renderer/item/RpkItemRenderer.java b/src/main/java/com/atsuishio/superbwarfare/client/renderer/item/RpkItemRenderer.java
index 84bd5e552..9d1f0bd67 100644
--- a/src/main/java/com/atsuishio/superbwarfare/client/renderer/item/RpkItemRenderer.java
+++ b/src/main/java/com/atsuishio/superbwarfare/client/renderer/item/RpkItemRenderer.java
@@ -81,7 +81,6 @@ public class RpkItemRenderer extends GeoItemRenderer<RpkItem> {
         ItemStack itemStack = player.getMainHandItem();
         if (!itemStack.is(ModTags.Items.GUN)) return;
         var data = GunData.from(itemStack);
-        var tag = GunData.from(itemStack).tag();
 
         if (name.equals("Cross1")) {
             bone.setHidden(ClientEventHandler.zoomPos < 0.7 || data.attachment.get(AttachmentType.SCOPE) != 1);
diff --git a/src/main/java/com/atsuishio/superbwarfare/event/LivingEventHandler.java b/src/main/java/com/atsuishio/superbwarfare/event/LivingEventHandler.java
index 3b9cec5f2..b332fe904 100644
--- a/src/main/java/com/atsuishio/superbwarfare/event/LivingEventHandler.java
+++ b/src/main/java/com/atsuishio/superbwarfare/event/LivingEventHandler.java
@@ -390,9 +390,9 @@ public class LivingEventHandler {
 
                 if (newStack.getItem() instanceof GunItem) {
                     var newData = GunData.from(newStack);
+                    newData.draw.set(true);
                     newTag = newData.tag();
 
-                    newTag.putBoolean("draw", true);
                     if (newData.defaultActionTime() > 0) {
                         newData.bolt.actionTimer.reset();
                     }
diff --git a/src/main/java/com/atsuishio/superbwarfare/event/PlayerEventHandler.java b/src/main/java/com/atsuishio/superbwarfare/event/PlayerEventHandler.java
index d8433bc63..849adf464 100644
--- a/src/main/java/com/atsuishio/superbwarfare/event/PlayerEventHandler.java
+++ b/src/main/java/com/atsuishio/superbwarfare/event/PlayerEventHandler.java
@@ -39,10 +39,7 @@ public class PlayerEventHandler {
         for (ItemStack stack : player.getInventory().items) {
             if (stack.getItem() instanceof GunItem) {
                 var data = GunData.from(stack);
-                tag = data.tag();
-
-                tag.putBoolean("draw", true);
-
+                data.draw.set(true);
                 data.save();
             }
         }
@@ -60,10 +57,7 @@ public class PlayerEventHandler {
         for (ItemStack stack : player.getInventory().items) {
             if (stack.is(ModTags.Items.GUN)) {
                 var data = GunData.from(stack);
-                final var tag = data.tag();
-
-                tag.putBoolean("draw", true);
-
+                data.draw.set(true);
                 data.save();
             }
         }
@@ -102,7 +96,6 @@ public class PlayerEventHandler {
         for (ItemStack stack : player.getInventory().items) {
             if (stack.is(ModTags.Items.GUN)) {
                 var data = GunData.from(stack);
-                var tag = data.tag();
 
                 if (!InventoryTool.hasCreativeAmmoBox(player)) {
                     var cap = player.getData(ModAttachments.PLAYER_VARIABLE);
@@ -142,7 +135,7 @@ public class PlayerEventHandler {
                 } else {
                     data.ammo.set(data.magazine());
                 }
-                GunsTool.setGunBooleanTag(tag, "HoldOpen", false);
+                data.holdOpen.set(false);
                 data.save();
             }
         }
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/GunEvents.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/GunEvents.java
index 23a93ce48..4916d2b2f 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/GunEvents.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/GunEvents.java
@@ -14,8 +14,7 @@ public class GunEvents {
         var stack = event.getItemEntity().getItem();
         if (stack.is(ModTags.Items.GUN)) {
             var data = GunData.from(stack);
-            final var tag = data.tag();
-            tag.putBoolean("draw", true);
+            data.draw.set(true);
             data.save();
         }
     }
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/GunItem.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/GunItem.java
index 0cf5dbccc..703c83fbb 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/GunItem.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/GunItem.java
@@ -65,7 +65,6 @@ public abstract class GunItem extends Item implements CustomRendererItem {
         ) return;
 
         var data = GunData.from(stack);
-        var tag = data.tag();
 
         if (!data.initialized()) {
             data.initialize();
@@ -73,7 +72,7 @@ public abstract class GunItem extends Item implements CustomRendererItem {
                 data.ammo.set(data.magazine());
             }
         }
-        tag.putBoolean("draw", false);
+        data.draw.set(false);
         handleGunPerks(data);
 
         var hasBulletInBarrel = gunItem.hasBulletInBarrel(stack);
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 415fa70ca..333ae22a5 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
@@ -64,6 +64,9 @@ public class GunData {
         forceStop = new BooleanValue(data, "ForceStop");
         loadIndex = new IntValue(data, "LoadIndex");
         maxAmmo = new IntValue(data, "MaxAmmo");
+        holdOpen = new BooleanValue(data, "HoldOpen");
+        hideBulletChain = new BooleanValue(data, "HideBulletChain");
+        draw = new BooleanValue(data, "Draw");
     }
 
     private CompoundTag getOrPut(String name) {
@@ -301,6 +304,9 @@ public class GunData {
     public final IntValue loadIndex;
     public final IntValue maxAmmo;
 
+    public final BooleanValue holdOpen;
+    public final BooleanValue hideBulletChain;
+    public final BooleanValue draw;
 
     // 其他子级属性
 
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Glock17Item.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Glock17Item.java
index 2415a5588..746cf96d1 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Glock17Item.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Glock17Item.java
@@ -144,6 +144,6 @@ public class Glock17Item extends GunItem implements GeoItem {
     public void addReloadTimeBehavior(Map<Integer, Consumer<GunData>> behaviors) {
         super.addReloadTimeBehavior(behaviors);
 
-        behaviors.put(9, data -> data.data().remove("HoldOpen"));
+        behaviors.put(9, data -> data.holdOpen.set(false));
     }
 }
\ No newline at end of file
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Glock18Item.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Glock18Item.java
index 6cc1d3279..ce4872c3d 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Glock18Item.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Glock18Item.java
@@ -152,6 +152,6 @@ public class Glock18Item extends GunItem implements GeoItem {
     public void addReloadTimeBehavior(Map<Integer, Consumer<GunData>> behaviors) {
         super.addReloadTimeBehavior(behaviors);
 
-        behaviors.put(9, data -> data.data().remove("HoldOpen"));
+        behaviors.put(9, data -> data.holdOpen.set(false));
     }
 }
\ No newline at end of file
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/M1911Item.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/M1911Item.java
index 36e8f7236..dfaa83bf7 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/M1911Item.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/M1911Item.java
@@ -147,6 +147,6 @@ public class M1911Item extends GunItem implements GeoItem {
     public void addReloadTimeBehavior(Map<Integer, Consumer<GunData>> behaviors) {
         super.addReloadTimeBehavior(behaviors);
 
-        behaviors.put(9, data -> data.data().remove("HoldOpen"));
+        behaviors.put(9, data -> data.holdOpen.set(false));
     }
 }
\ No newline at end of file
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Mp443Item.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Mp443Item.java
index afe2dd390..0b13440a9 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Mp443Item.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/handgun/Mp443Item.java
@@ -144,6 +144,6 @@ public class Mp443Item extends GunItem implements GeoItem {
     public void addReloadTimeBehavior(Map<Integer, Consumer<GunData>> behaviors) {
         super.addReloadTimeBehavior(behaviors);
 
-        behaviors.put(9, data -> data.data().remove("HoldOpen"));
+        behaviors.put(9, data -> data.holdOpen.set(false));
     }
 }
\ No newline at end of file
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/RpgItem.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/RpgItem.java
index 8e8715e29..4991a9625 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/RpgItem.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/launcher/RpgItem.java
@@ -133,9 +133,8 @@ public class RpgItem extends GunItem implements GeoItem, SpecialFireWeapon {
     @ParametersAreNonnullByDefault
     public void inventoryTick(ItemStack stack, Level world, Entity entity, int slot, boolean selected) {
         var data = GunData.from(stack);
-        final var tag = data.tag();
-        if (tag.getBoolean("draw")) {
-            tag.putBoolean("draw", false);
+        if (data.draw.get()) {
+            data.draw.set(false);
 
             if (data.ammo.get() == 0) {
                 data.isEmpty.set(true);
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 aabe24f3d..6b09497ad 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
@@ -10,7 +10,6 @@ import com.atsuishio.superbwarfare.item.gun.GunItem;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.perk.Perk;
 import com.atsuishio.superbwarfare.perk.PerkHelper;
-import com.atsuishio.superbwarfare.tools.GunsTool;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.player.LocalPlayer;
 import net.minecraft.resources.ResourceLocation;
@@ -109,12 +108,11 @@ public class M60Item extends GunItem implements GeoItem {
     @ParametersAreNonnullByDefault
     public void inventoryTick(ItemStack stack, Level level, Entity entity, int slot, boolean selected) {
         var data = GunData.from(stack);
-        final var tag = data.tag();
-        if (tag.getBoolean("draw")) {
-            tag.putBoolean("draw", false);
+        if (data.draw.get()) {
+            data.draw.set(false);
 
             if (data.ammo.get() <= 5) {
-                GunsTool.setGunBooleanTag(tag, "HideBulletChain", true);
+                data.hideBulletChain.set(true);
             }
             data.save();
         }
@@ -165,6 +163,6 @@ public class M60Item extends GunItem implements GeoItem {
     public void addReloadTimeBehavior(Map<Integer, Consumer<GunData>> behaviors) {
         super.addReloadTimeBehavior(behaviors);
 
-        behaviors.put(55, data -> data.data().remove("HideBulletChain"));
+        behaviors.put(55, data -> data.hideBulletChain.reset());
     }
 }
\ No newline at end of file
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/Mk14Item.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/Mk14Item.java
index e53430556..1eed641ae 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/Mk14Item.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/Mk14Item.java
@@ -244,6 +244,6 @@ public class Mk14Item extends GunItem implements GeoItem {
     public void addReloadTimeBehavior(Map<Integer, Consumer<GunData>> behaviors) {
         super.addReloadTimeBehavior(behaviors);
 
-        behaviors.put(18, data -> data.data().remove("HoldOpen"));
+        behaviors.put(18, data -> data.holdOpen.set(false));
     }
 }
\ No newline at end of file
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/Qbz95Item.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/Qbz95Item.java
index 667156c20..724310446 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/Qbz95Item.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/Qbz95Item.java
@@ -252,6 +252,6 @@ public class Qbz95Item extends GunItem implements GeoItem {
     public void addReloadTimeBehavior(Map<Integer, Consumer<GunData>> behaviors) {
         super.addReloadTimeBehavior(behaviors);
 
-        behaviors.put(14, data -> data.data().remove("HoldOpen"));
+        behaviors.put(14, data -> data.holdOpen.set(false));
     }
 }
\ No newline at end of file
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/SksItem.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/SksItem.java
index c0d660354..7c274cd03 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/SksItem.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/rifle/SksItem.java
@@ -9,7 +9,6 @@ import com.atsuishio.superbwarfare.item.gun.GunItem;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.perk.Perk;
 import com.atsuishio.superbwarfare.perk.PerkHelper;
-import com.atsuishio.superbwarfare.tools.GunsTool;
 import net.minecraft.client.Minecraft;
 import net.minecraft.client.player.LocalPlayer;
 import net.minecraft.resources.ResourceLocation;
@@ -93,12 +92,11 @@ public class SksItem extends GunItem implements GeoItem {
     @ParametersAreNonnullByDefault
     public void inventoryTick(ItemStack stack, Level level, Entity entity, int slot, boolean selected) {
         var data = GunData.from(stack);
-        final var tag = data.tag();
-        if (tag.getBoolean("draw")) {
-            tag.putBoolean("draw", false);
+        if (data.draw.get()) {
+            data.draw.set(false);
 
             if (data.ammo.get() == 0) {
-                GunsTool.setGunBooleanTag(tag, "HoldOpen", true);
+                data.holdOpen.set(true);
             }
             data.save();
         }
@@ -149,6 +147,6 @@ public class SksItem extends GunItem implements GeoItem {
     public void addReloadTimeBehavior(Map<Integer, Consumer<GunData>> behaviors) {
         super.addReloadTimeBehavior(behaviors);
 
-        behaviors.put(14, data -> data.data().remove("HoldOpen"));
+        behaviors.put(14, data -> data.holdOpen.set(false));
     }
 }
\ No newline at end of file
diff --git a/src/main/java/com/atsuishio/superbwarfare/item/gun/sniper/SvdItem.java b/src/main/java/com/atsuishio/superbwarfare/item/gun/sniper/SvdItem.java
index 37ff838c2..3596c043a 100644
--- a/src/main/java/com/atsuishio/superbwarfare/item/gun/sniper/SvdItem.java
+++ b/src/main/java/com/atsuishio/superbwarfare/item/gun/sniper/SvdItem.java
@@ -198,6 +198,6 @@ public class SvdItem extends GunItem implements GeoItem {
     public void addReloadTimeBehavior(Map<Integer, Consumer<GunData>> behaviors) {
         super.addReloadTimeBehavior(behaviors);
 
-        behaviors.put(17, data -> data.data().remove("HoldOpen"));
+        behaviors.put(17, data -> data.holdOpen.set(false));
     }
 }
\ No newline at end of file
diff --git a/src/main/java/com/atsuishio/superbwarfare/network/message/send/ShootMessage.java b/src/main/java/com/atsuishio/superbwarfare/network/message/send/ShootMessage.java
index 970ea2914..e83c06445 100644
--- a/src/main/java/com/atsuishio/superbwarfare/network/message/send/ShootMessage.java
+++ b/src/main/java/com/atsuishio/superbwarfare/network/message/send/ShootMessage.java
@@ -6,7 +6,6 @@ import com.atsuishio.superbwarfare.init.*;
 import com.atsuishio.superbwarfare.item.gun.data.GunData;
 import com.atsuishio.superbwarfare.perk.AmmoPerk;
 import com.atsuishio.superbwarfare.perk.Perk;
-import com.atsuishio.superbwarfare.tools.GunsTool;
 import com.atsuishio.superbwarfare.tools.InventoryTool;
 import com.atsuishio.superbwarfare.tools.ParticleTool;
 import com.atsuishio.superbwarfare.tools.SoundTool;
@@ -50,7 +49,7 @@ public record ShootMessage(double spread, boolean zoom) implements CustomPacketP
             if (data.ammo.get() > 0) {
                 // 空仓挂机
                 if (data.ammo.get() == 1) {
-                    GunsTool.setGunBooleanTag(tag, "HoldOpen", true);
+                    data.holdOpen.set(true);
                 }
 
                 if (stack.is(ModTags.Items.REVOLVER)) {
@@ -66,7 +65,7 @@ public record ShootMessage(double spread, boolean zoom) implements CustomPacketP
                 data.isEmpty.set(true);
 
                 if (stack.getItem() == ModItems.M_60.get() && data.ammo.get() <= 5) {
-                    GunsTool.setGunBooleanTag(tag, "HideBulletChain", true);
+                    data.hideBulletChain.set(true);
                 }
 
                 if (stack.getItem() == ModItems.HOMEMADE_SHOTGUN.get()) {