diff --git a/addons/optics/CfgJointRails.hpp b/addons/optics/CfgJointRails.hpp
index 86c962afe5..5489b1c4fe 100644
--- a/addons/optics/CfgJointRails.hpp
+++ b/addons/optics/CfgJointRails.hpp
@@ -13,3 +13,35 @@ class asdg_OpticRail1913: asdg_OpticRail {
         ACE_optic_LRPS_PIP = 1;
     };
 };
+
+// Vanilla rails
+class SlotInfo;
+class CowsSlot: SlotInfo {
+    compatibleItems[] += {
+        "ACE_optic_Hamr_2D",
+        "ACE_optic_Hamr_PIP",
+        "ACE_optic_Arco_2D",
+        "ACE_optic_Arco_PIP",
+        "ACE_optic_MRCO_2D",
+        "ACE_optic_MRCO_PIP",
+        "ACE_optic_SOS_2D",
+        "ACE_optic_SOS_PIP",
+        "ACE_optic_LRPS_2D",
+        "ACE_optic_LRPS_PIP"
+    };
+};
+
+class CowsSlot_Rail: CowsSlot {
+    class compatibleItems {
+        ACE_optic_Hamr_2D = 1;
+        ACE_optic_Hamr_PIP = 1;
+        ACE_optic_Arco_2D = 1;
+        ACE_optic_Arco_PIP = 1;
+        ACE_optic_MRCO_2D = 1;
+        ACE_optic_MRCO_PIP = 1;
+        ACE_optic_SOS_2D = 1;
+        ACE_optic_SOS_PIP = 1;
+        ACE_optic_LRPS_2D = 1;
+        ACE_optic_LRPS_PIP = 1;
+    };
+};
diff --git a/addons/optics/CfgWeapons.hpp b/addons/optics/CfgWeapons.hpp
index c9dfbb8d7b..8088a5fcd3 100644
--- a/addons/optics/CfgWeapons.hpp
+++ b/addons/optics/CfgWeapons.hpp
@@ -307,20 +307,3 @@ class CfgWeapons {
         };
     };
 };
-
-class SlotInfo;
-class CowsSlot: SlotInfo {
-    compatibleItems[] += {
-        "ACE_optic_Hamr_2D",
-        "ACE_optic_Hamr_PIP",
-        "ACE_optic_Arco_2D",
-        "ACE_optic_Arco_PIP",
-        "ACE_optic_MRCO_2D",
-        "ACE_optic_MRCO_PIP",
-        "ACE_optic_SOS_2D",
-        "ACE_optic_SOS_PIP",
-        "ACE_optic_LRPS_2D",
-        "ACE_optic_LRPS_PIP"
-        //"ACE_optic_DMS"
-    };
-};