diff --git a/data/json/itemgroups/Weapons_Mods_Ammo/gunmod.json b/data/json/itemgroups/Weapons_Mods_Ammo/gunmod.json
index 888272c95de24..bda191f2396bd 100644
--- a/data/json/itemgroups/Weapons_Mods_Ammo/gunmod.json
+++ b/data/json/itemgroups/Weapons_Mods_Ammo/gunmod.json
@@ -75,7 +75,6 @@
       [ "m320_mod", 10 ],
       [ "masterkey", 30 ],
       [ "m26_mass", 35 ],
-      [ "rm121aux", 10 ],
       [ "sword_bayonet", 10 ]
     ]
   },
diff --git a/data/json/itemgroups/military.json b/data/json/itemgroups/military.json
index 65ccdbe0d691c..78bb3a42c28ff 100644
--- a/data/json/itemgroups/military.json
+++ b/data/json/itemgroups/military.json
@@ -670,7 +670,6 @@
       { "item": "binoculars", "prob": 20 },
       { "item": "masterkey", "prob": 2 },
       { "item": "m26_mass", "prob": 3 },
-      { "item": "rm121aux", "prob": 1 },
       { "item": "shot_flechette", "prob": 5 },
       { "item": "canteen", "prob": 15 },
       { "item": "2lcanteen", "prob": 10 },
diff --git a/data/json/items/melee/swords_and_blades.json b/data/json/items/melee/swords_and_blades.json
index 010a6d49adae8..3a2364a01c7d4 100644
--- a/data/json/items/melee/swords_and_blades.json
+++ b/data/json/items/melee/swords_and_blades.json
@@ -331,8 +331,6 @@
         "makeshift_bayonet",
         "m26_mass",
         "m26_mass_mod",
-        "rm121aux",
-        "rm121aux_mod",
         "masterkey",
         "masterkey_mod",
         "u_shotgun",
@@ -402,8 +400,6 @@
         "makeshift_bayonet",
         "m26_mass",
         "m26_mass_mod",
-        "rm121aux",
-        "rm121aux_mod",
         "masterkey",
         "masterkey_mod",
         "u_shotgun",
@@ -460,8 +456,6 @@
         "makeshift_bayonet",
         "m26_mass",
         "m26_mass_mod",
-        "rm121aux",
-        "rm121aux_mod",
         "masterkey",
         "masterkey_mod",
         "u_shotgun",
@@ -1689,8 +1683,6 @@
         "makeshift_bayonet",
         "m26_mass",
         "m26_mass_mod",
-        "rm121aux",
-        "rm121aux_mod",
         "masterkey",
         "masterkey_mod",
         "u_shotgun",
@@ -3122,8 +3114,6 @@
         "makeshift_bayonet",
         "m26_mass",
         "m26_mass_mod",
-        "rm121aux",
-        "rm121aux_mod",
         "masterkey",
         "masterkey_mod",
         "u_shotgun",
@@ -3171,8 +3161,6 @@
         "makeshift_bayonet",
         "m26_mass",
         "m26_mass_mod",
-        "rm121aux",
-        "rm121aux_mod",
         "masterkey",
         "masterkey_mod",
         "u_shotgun",
diff --git a/data/json/recipes/nested.json b/data/json/recipes/nested.json
index 5e6db0cd6d968..6d59adfb7898f 100644
--- a/data/json/recipes/nested.json
+++ b/data/json/recipes/nested.json
@@ -4121,7 +4121,6 @@
       "m203_mod",
       "m320_mod_mod",
       "masterkey_mod",
-      "rm121aux_mod",
       "sword_bayonet_mod",
       "u_shotgun_mod"
     ]