diff --git a/server/gameserver/mt/Equip.cc b/server/gameserver/mt/Equip.cc
index 6d90fb8b..3f4dfbd8 100644
--- a/server/gameserver/mt/Equip.cc
+++ b/server/gameserver/mt/Equip.cc
@@ -356,4 +356,9 @@ namespace mt
         return weapon_stone_;
     }
 
+    bool Equip::IsMultistageGun() const
+    {
+        return false;
+    }
+
 }
diff --git a/server/gameserver/mt/Equip.h b/server/gameserver/mt/Equip.h
index 0f806ec1..4a84b92a 100644
--- a/server/gameserver/mt/Equip.h
+++ b/server/gameserver/mt/Equip.h
@@ -45,6 +45,7 @@ namespace mt
         void AddMuzzlePos(int lv, std::shared_ptr<std::tuple<float, float, float>> pos);
         int GetWeaponIdx() const;
         bool Match(EventAddBuff_e event, int val, int val2) const;
+        bool IsMultistageGun() const;
         static const Equip* GetByIdBySlotId(int slot_id);
         static void AdjustMuzzlePos();
         static const Equip* GetYellowStone();