diff --git a/tgui/packages/tgui/interfaces/MfdPanels/FiremissionPanel.tsx b/tgui/packages/tgui/interfaces/MfdPanels/FiremissionPanel.tsx
index 23d62720ad67..80b68ba76b4b 100644
--- a/tgui/packages/tgui/interfaces/MfdPanels/FiremissionPanel.tsx
+++ b/tgui/packages/tgui/interfaces/MfdPanels/FiremissionPanel.tsx
@@ -468,6 +468,7 @@ const FMOffsetStack = (
             {x}
           </Stack.Item>
         ))}
+
       {editFm === true &&
         offsets &&
         offsets.map((x, i) => {
@@ -478,6 +479,15 @@ const FMOffsetStack = (
               </Stack.Item>
             );
           }
+          if (props.equipment.firemission_delay === 0) {
+            return (
+              <Stack.Item key={i}>
+                <Box className="FiremissionBadStep">
+                  Ammo unusable for firemissions
+                </Box>
+              </Stack.Item>
+            );
+          }
           return (
             <Stack.Item key={i}>
               <Stack>