diff --git a/server/gameserver/gungrasp.cc b/server/gameserver/gungrasp.cc
index 1bef24f2..4eb87931 100644
--- a/server/gameserver/gungrasp.cc
+++ b/server/gameserver/gungrasp.cc
@@ -14,6 +14,16 @@ struct GraspBuff
     list_head entry;
     std::tuple<const mt::GraspBuff*, const mt::GraspBuff*> buffs;
     std::function<void()> on_remove;
+
+    void ProcSignet(GunGrasp* gun_grasp, int count)
+    {
+        const mt::GraspBuff* buff1_meta = std::get<0>(buffs);
+        const mt::GraspBuff* buff2_meta = std::get<1>(buffs);
+        if (buff1_meta && buff2_meta) {
+            gun_grasp->AddSignet(buff1_meta->graspbuff_id(), count);
+        }
+    }
+
 };
 
 GunGrasp::GunGrasp(Creature* owner)
@@ -92,9 +102,9 @@ void GunGrasp::ProcHit(GraspBuff* buff)
     owner_->GetTrigger()->AddListener
         (
          kBulletHitEvent,
-         [] (const a8::Args& args)
+         [this, buff] (const a8::Args& args)
          {
-
+             buff->ProcSignet(this, 1);
          });
 }
 
@@ -103,15 +113,15 @@ void GunGrasp::ProcKill(GraspBuff* buff)
     owner_->GetTrigger()->AddListener
         (
          kKillEvent,
-         [] (const a8::Args& args)
+         [this, buff] (const a8::Args& args)
          {
-
+             buff->ProcSignet(this, 1);
          });
 }
 
 void GunGrasp::ProcTakeOn(GraspBuff* buff)
 {
-
+    buff->ProcSignet(this, 1);
 }
 
 void GunGrasp::ProcCond(GraspBuff* buff)
@@ -124,8 +134,29 @@ void GunGrasp::ProcHitAndEnd(GraspBuff* buff)
     owner_->GetTrigger()->AddListener
         (
          kBulletHitEvent,
-         [] (const a8::Args& args)
+         [this, buff] (const a8::Args& args)
          {
-
+             buff->ProcSignet(this, 1);
          });
 }
+
+void GunGrasp::AddSignet(int id, int count)
+{
+    auto itr = signet_hash_.find(id);
+    if (itr != signet_hash_.end()) {
+        itr->second += count;
+    } else {
+        signet_hash_[id] = count;
+    }
+}
+
+int GunGrasp::GetSignetCount(int id)
+{
+    auto itr = signet_hash_.find(id);
+    return itr != signet_hash_.end() ? itr->second : 0;
+}
+
+bool GunGrasp::HasBulletBlockBuff()
+{
+    return !list_empty(&grasp_triggers_[(int)GraspBuffTrigger_e::kHitAndEnd]);
+}
diff --git a/server/gameserver/gungrasp.h b/server/gameserver/gungrasp.h
index b08f3280..302e5d28 100644
--- a/server/gameserver/gungrasp.h
+++ b/server/gameserver/gungrasp.h
@@ -10,6 +10,8 @@ class GunGrasp
 
     void Clear();
     void InstallTriggers();
+    void AddSignet(int id, int count);
+    bool HasBulletBlockBuff();
 
  private:
     void ProcHit(GraspBuff* buff);
@@ -18,7 +20,10 @@ class GunGrasp
     void ProcCond(GraspBuff* buff);
     void ProcHitAndEnd(GraspBuff* buff);
 
+    int GetSignetCount(int id);
+
  private:
     Creature* owner_ = nullptr;
+    std::map<int, int> signet_hash_;
     std::array<list_head, (int)GraspBuffTrigger_e::kEnd> grasp_triggers_ = {};
 };
diff --git a/server/gameserver/mt/GraspBuff.cc b/server/gameserver/mt/GraspBuff.cc
index 8ab06d3f..9240c911 100644
--- a/server/gameserver/mt/GraspBuff.cc
+++ b/server/gameserver/mt/GraspBuff.cc
@@ -67,4 +67,24 @@ namespace mt
 
     }
 
+    int GraspBuff::GetBuffTime(int hero_lv)
+    {
+        switch (hero_lv) {
+        case 10:
+        case 11:
+        case 12:
+        case 13:
+        case 14:
+        case 15:
+            {
+                return _buff_times.size() > 1 ?  _buff_times.at(1) :_buff_times.at(0);
+            }
+        default:
+            {
+                return _buff_times.at(0);
+            }
+            break;
+        }
+    }
+
 }
diff --git a/server/gameserver/mt/GraspBuff.h b/server/gameserver/mt/GraspBuff.h
index 9c468b36..833a40f2 100644
--- a/server/gameserver/mt/GraspBuff.h
+++ b/server/gameserver/mt/GraspBuff.h
@@ -17,6 +17,11 @@ namespace mt
         int _trigger_type = 0;
         int _trigger_subtype = 0;
         std::vector<int> _trigger_cond;
+        int GetBuffTime(int hero_lv);
+
+    private:
+        std::vector<int> _buff_times;
+
     };
 
 }
diff --git a/server/gameserver/trigger.cc b/server/gameserver/trigger.cc
index 7612d044..ec8d2423 100644
--- a/server/gameserver/trigger.cc
+++ b/server/gameserver/trigger.cc
@@ -491,3 +491,8 @@ void Trigger::DmgOut(Creature* target, float dmg)
 {
     DispatchEvent(kDmgOutEvent, {target, dmg});
 }
+
+void Trigger::BulletBlock(IBullet* bullet, const glm::vec3& pos)
+{
+    DispatchEvent(kBulletBlockEvent, {bullet, pos});
+}
diff --git a/server/gameserver/trigger.h b/server/gameserver/trigger.h
index 50b12378..f46c490b 100644
--- a/server/gameserver/trigger.h
+++ b/server/gameserver/trigger.h
@@ -24,6 +24,7 @@ enum EventId_e
    kShieldDestoryEvent,
    kFlyHookPullEvent,
    kBulletHitEvent,
+   kBulletBlockEvent,
    kYsRemoveEvent,
    kStartRescueEvent,
    kEndRescueEvent,
@@ -75,6 +76,7 @@ public:
     void BulletHitBuff(Bullet* bullet);
     void Attacked(Creature* sender);
     void DmgOut(Creature* target, float dmg);
+    void BulletBlock(IBullet* bullet, const glm::vec3& pos);
 
     std::weak_ptr<EventHandlerPtr> AddListener(int event_id, a8::CommonCbProc cb);
     void RemoveEventHandler(std::weak_ptr<EventHandlerPtr> handler_ptr);