diff --git a/doc/Gun.py b/doc/Gun.py
index 1bd057d5..c29e42b7 100644
--- a/doc/Gun.py
+++ b/doc/Gun.py
@@ -197,4 +197,21 @@ class Gun(object):
                     ['!infos', [_common.QualityingGun()], '升阶中的枪械列表'],
                 ]
             },
+            {
+                'name': 'upgradeLv',
+                'desc': '升等级',
+                'group': 'Gun',
+                'url': 'webapp/index.php?c=Gun&a=upgradeLv',
+                'params': [
+                    _common.ReqHead(),
+                    ['gun_uniid', 0, '枪械唯一id'],
+                     ['cost_gun_uniid', 0, '材料武器id'],
+                ],
+                'response': [
+                    _common.RspHead(),
+                    ['property_chg', _common.PropertyChg(), '属性变更'],
+                    ['old_gun', _common.Gun(), '枪械-老'],
+                    ['new_gun', _common.Gun(), '枪械-新'],
+                ]
+            },
         ]
diff --git a/webapp/controller/GunController.class.php b/webapp/controller/GunController.class.php
index a1b93908..d3ee9798 100644
--- a/webapp/controller/GunController.class.php
+++ b/webapp/controller/GunController.class.php
@@ -816,4 +816,65 @@ class GunController extends BaseAuthedController {
         ));
     }
 
+    public function upgradeLv(){
+        $gunUniId = getReqVal('gun_uniid', 0);
+        $costGunUniId = getReqVal('cost_gun_uniid', 0);
+        $gunDb = Gun::find($gunUniId);
+        $oldGun = Gun::toDto($gunDb);
+        $costGunDb = Gun::findEx($costGunUniId);
+        if (!$gunDb || !$costGunDb) {
+            $this->_rspErr(100, 'param error or null');
+            return;
+        }
+        if ($costGunDb['token_id']){
+            $this->_rspErr(100, 'NFT cannot be a material');
+            return;
+        }
+        if ($gunDb['gun_lv'] != $costGunDb['gun_lv']){
+            $this->_rspErr(100, 'You need the same level to do it');
+            return;
+        }
+        $itemMeta = mt\Item::get($gunDb['gun_id']);
+        if (!$itemMeta) {
+            $this->_rspErr(100, 'server internal error');
+            return;
+        }
+
+        $nextLevelMeta = mt\GunLevel::getByLevel($gunDb['gun_lv'] +1);
+        if (!$nextLevelMeta) {
+            $this->_rspErr(5, "It's already the highest level");
+            return;
+        }
+
+        //升级所需消耗
+//        $costItems = array();
+//        $lackItem = null;
+//        if (!$this->_hasEnoughItems($costItems, $lackItem)) {
+//            $this->_rspErr(3, $this->_getLackItemErrMsg($lackItem));
+//            return;
+//        }
+//        $this->_decItems($costItems);
+
+        $attrs = mt\GunLevel::addRandAttrNew($gunDb,1);
+        Gun::update($gunUniId,
+            array(
+                'gun_lv' => $gunDb['gun_lv'] + 1,
+                'rand_attr' => json_encode($attrs),
+            ));
+        Gun::update($costGunUniId,
+            array(
+                'account_id' => myself()->_getAccountId() . '!!!',
+            )
+        );
+        $newGun = Gun::toDto(Gun::find($gunUniId));
+        $propertyChgService = new services\PropertyChgService();
+        $propertyChgService->addGunChg();
+        $propertyChgService->addUserChg();
+        $this->_rspData(array(
+            'property_chg' => $propertyChgService->toDto(),
+            'old_gun' => $oldGun,
+            'new_gun' => $newGun,
+        ));
+    }
+
 }
diff --git a/webapp/models/Gun.php b/webapp/models/Gun.php
index 0290146a..8cd88b94 100644
--- a/webapp/models/Gun.php
+++ b/webapp/models/Gun.php
@@ -57,6 +57,11 @@ class Gun extends BaseModel {
                 'idx' => $gunUniId,
             )
         );
+        if ($row) {
+            if ($row['account_id'] != myself()->_getAccountId()) {
+                $row = null;
+            }
+        }
         return $row;
     }