diff --git a/server/gameserver/base_agent.cc b/server/gameserver/base_agent.cc
index ed8242e6..642ac543 100644
--- a/server/gameserver/base_agent.cc
+++ b/server/gameserver/base_agent.cc
@@ -457,8 +457,14 @@ behaviac::EBTStatus BaseAgent::CoShot()
                              current_target_.Get()->GetPos().ToGlmVec3())) {
         return behaviac::BT_FAILURE;
     }
-    bool shot_ok = false;
+    if (!GetOwner()->GetCurrWeapon()) {
+        return behaviac::BT_FAILURE;
+    }
     glm::vec3 dir = GetOwner()->GetPos().CalcDir(current_target_.Get()->GetPos());
+    if (GlmHelper::Norm(dir) > 150) {
+        return behaviac::BT_FAILURE;
+    }
+    bool shot_ok = false;
     GlmHelper::Normalize(dir);
     GetOwner()->SetAttackDir(dir);
     GetOwner()->shot_hold = true;