diff --git a/server/tools/protobuild/metatable.proto b/server/tools/protobuild/metatable.proto
index 90e5c59a..dd497ab8 100755
--- a/server/tools/protobuild/metatable.proto
+++ b/server/tools/protobuild/metatable.proto
@@ -101,6 +101,7 @@ message Equip
     optional int32 explosion_effect = 42;
     optional string param1 = 43;
     optional int32 reloadtype = 46;
+    optional float Recoil_force = 47;
 
     optional string inventory_slot = 31; //库存槽位
     optional int32 _inventory_slot = 32; //库存槽位
diff --git a/third_party/a8engine b/third_party/a8engine
index a0d01a57..9f43c103 160000
--- a/third_party/a8engine
+++ b/third_party/a8engine
@@ -1 +1 @@
-Subproject commit a0d01a57a5792268b7dd0c144dfda00e7e171d80
+Subproject commit 9f43c10312f3f3adccab2d477365c0c1d9200e03