diff --git a/PALAMOD_CDC.md b/PALAMOD_CDC.md
index 098abd5..11d1832 100644
--- a/PALAMOD_CDC.md
+++ b/PALAMOD_CDC.md
@@ -649,6 +649,11 @@ avant M4 (TODO:crafts-machines).
 - M-gadget-3 LIVRE 2026-10-19 ~05:30 : bocal a poissons (ID 3100, slot casque =
   cecite, texture fish legacy, sans craft ECART). ECART : poisson a l'ecran infaisable
   sans mod client. VERIFIE : build SUCCESSFUL, boot Done, 0 erreur. UNVERIFIED en jeu.
+- M-gadget-4 LIVRE 2026-10-19 ~05:35 : bottes lestees (ID 4977, legacy VERIFIE :
+  explosion BREAK |vel_y| + 0.25, "EXPLOSION !!!!", usure 1, dura 16, ArmorItem existant
+  reutilise). ECART : puissance approximee h/8 + 1, annulee en claim d'autrui.
+  Lecons : ExplosionInteraction.BREAK n'existe plus en 26.3 -> TNT ; fallDistance est
+  double. VERIFIE : build SUCCESSFUL, boot Done, 0 erreur. UNVERIFIED en jeu.
 - M-palaforge LIVRE 2026-10-19 ~03:55 : bloc + BE partagee (3e mode) + gate mineur 14 +
   table fonte wiki §3.2 (31 items, ratio floor usure) + fuels bois (+buche/planches/baton,
   lave exclue : seau non rendu) + craft (1 findium + 4 furnaces + 4 briques, positions
diff --git a/mods/pala/src/main/java/fr/surviepote/pala/PalaTabs.java b/mods/pala/src/main/java/fr/surviepote/pala/PalaTabs.java
index 4a37d2d..053e292 100644
--- a/mods/pala/src/main/java/fr/surviepote/pala/PalaTabs.java
+++ b/mods/pala/src/main/java/fr/surviepote/pala/PalaTabs.java
@@ -72,6 +72,7 @@ public final class PalaTabs {
             output.accept(PalaItems.CHUNK_ANALYSER);
             output.accept(PalaItems.GRAPPIN);
             output.accept(PalaItems.FISHBOWL);
+            output.accept(PalaItems.WEIGHTED_BOOTS);
             output.accept(PalaItems.CANDY);
             output.accept(PalaItems.CANDY_BLUE);
             output.accept(PalaItems.CANDY_GREEN);
diff --git a/mods/pala/src/main/java/fr/surviepote/pala/events/PalaArmorEvents.java b/mods/pala/src/main/java/fr/surviepote/pala/events/PalaArmorEvents.java
index d01cd86..8ec42b8 100644
--- a/mods/pala/src/main/java/fr/surviepote/pala/events/PalaArmorEvents.java
+++ b/mods/pala/src/main/java/fr/surviepote/pala/events/PalaArmorEvents.java
@@ -1,6 +1,8 @@
 package fr.surviepote.pala.events;
 
 import net.minecraft.core.Holder;
+import net.minecraft.core.BlockPos;
+import net.minecraft.server.level.ServerLevel;
 import net.minecraft.server.level.ServerPlayer;
 import net.minecraft.world.effect.MobEffect;
 import net.minecraft.world.effect.MobEffectInstance;
@@ -36,6 +38,29 @@ public final class PalaArmorEvents {
         entity.addEffect(new MobEffectInstance(effect, duration, amplifier, false, false));
     }
 
+    private static final java.util.Map<java.util.UUID, Double> LAST_FALL =
+            new java.util.HashMap<>();
+
+    // M-gadget-4 : explosion BREAK legacy (|vel_y| + 0.25 approxime par h/8 + 1,
+    // plafonnee a 4, UNVERIFIED). Annulee en territoire d'autrui.
+    static void weightedBoom(ServerPlayer player, double fell) {
+        ServerLevel level = player.level();
+        BlockPos pos = player.blockPosition();
+        if (!fr.surviepote.pala.events.PalaFactionProtect.canAct(player, level, pos)) {
+            player.sendSystemMessage(net.minecraft.network.chat.Component.literal(
+                    "§cTerritoire de faction protege."));
+            return;
+        }
+        float power = (float) Math.min(1.0 + fell / 8.0, 4.0);
+        ItemStack boots = player.getItemBySlot(EquipmentSlot.FEET);
+        if (!boots.isEmpty()) {
+            boots.hurtAndBreak(1, player, EquipmentSlot.FEET);
+        }
+        player.sendSystemMessage(net.minecraft.network.chat.Component.literal("§l§cEXPLOSION !!!!"));
+        level.explode(player, pos.getX() + 0.5, pos.getY(), pos.getZ() + 0.5, power,
+                net.minecraft.world.level.Level.ExplosionInteraction.TNT);
+    }
+
     private static boolean wearing(ServerPlayer player, EquipmentSlot slot, net.minecraft.world.item.Item item) {
         ItemStack stack = player.getItemBySlot(slot);
         return !stack.isEmpty() && stack.getItem() == item;
@@ -47,6 +72,21 @@ public final class PalaArmorEvents {
             effect(player, net.minecraft.world.effect.MobEffects.BLINDNESS, 60, 0);
         }
 
+        // --- Bottes lestees (M-gadget-4, legacy VERIFIE) : memorise la chute, explosion
+        // a l'atterrissage si > 3 blocs. Annulee en claim d'autrui (anti-grief, ECART).
+        if (wearing(player, EquipmentSlot.FEET, PalaItems.WEIGHTED_BOOTS)) {
+            if (!player.onGround()) {
+                LAST_FALL.put(player.getUUID(), player.fallDistance);
+            } else {
+                Double fell = LAST_FALL.remove(player.getUUID());
+                if (fell != null && fell > 3.0F) {
+                    weightedBoom(player, fell);
+                }
+            }
+        } else {
+            LAST_FALL.remove(player.getUUID());
+        }
+
         // --- Armure Paladium (1 procedure par piece dans le legacy) ---
         if (wearing(player, EquipmentSlot.HEAD, PalaItems.PALADIUM_HELMET)) {
             effect(player, net.minecraft.world.effect.MobEffects.NIGHT_VISION, 860, 1);
diff --git a/mods/pala/src/main/resources/assets/pala/lang/en_us.json b/mods/pala/src/main/resources/assets/pala/lang/en_us.json
index 1fab003..57c8275 100644
--- a/mods/pala/src/main/resources/assets/pala/lang/en_us.json
+++ b/mods/pala/src/main/resources/assets/pala/lang/en_us.json
@@ -4,6 +4,7 @@
   "item.pala.amethyst_mixed_coal": "Amethyst Mixed Coal",
   "item.pala.amethyst_stick": "Amethyst Stick",
   "item.pala.compressed_amethyst": "Compressed Amethyst",
+  "item.pala.weighted_boots": "Boom Boots",
   "item.pala.fishbowl": "Bocal a poissons",
   "item.pala.grappin": "Grappin",
   "item.pala.chunk_analyser": "Chunk Analyser",
diff --git a/server/mods/pala-0.2.1.jar b/server/mods/pala-0.2.1.jar
index 27752ab..9ce9d16 100644
Binary files a/server/mods/pala-0.2.1.jar and b/server/mods/pala-0.2.1.jar differ