diff --git a/src/module/actor/actor-data.ts b/src/module/actor/actor-data.ts
index 9f12ef3e..7fcb8398 100644
--- a/src/module/actor/actor-data.ts
+++ b/src/module/actor/actor-data.ts
@@ -17,6 +17,7 @@ interface DS4ActorDataDataBase {
     attributes: DS4ActorDataDataAttributes;
     traits: DS4ActorDataDataTraits;
     combatValues: DS4ActorDataDataCombatValues;
+    rolling: DS4ActorDataDataRolling;
 }
 
 interface DS4ActorDataDataAttributes {
@@ -45,6 +46,11 @@ interface DS4ActorDataDataCombatValues {
     targetedSpellcasting: ModifiableData<number>;
 }
 
+interface DS4ActorDataDataRolling {
+    maximumCoupResult?: number;
+    minimumFumbleResult?: number;
+}
+
 interface DS4CharacterDataData extends DS4ActorDataDataBase {
     baseInfo: DS4CharacterDataDataBaseInfo;
     progression: DS4CharacterDataDataProgression;
diff --git a/src/module/actor/actor.ts b/src/module/actor/actor.ts
index 305ca04e..e28effdc 100644
--- a/src/module/actor/actor.ts
+++ b/src/module/actor/actor.ts
@@ -25,6 +25,9 @@ export class DS4Actor extends Actor<DS4ActorData, DS4Item> {
     prepareBaseData(): void {
         const data = this.data;
 
+        data.data.rolling.minimumFumbleResult = 20;
+        data.data.rolling.maximumCoupResult = 1;
+
         const attributes = data.data.attributes;
         Object.values(attributes).forEach(
             (attribute: ModifiableData<number>) => (attribute.total = attribute.base + attribute.mod),
diff --git a/src/module/item/item.ts b/src/module/item/item.ts
index cbea7431..211f7720 100644
--- a/src/module/item/item.ts
+++ b/src/module/item/item.ts
@@ -65,11 +65,15 @@ export class DS4Item extends Item<DS4ItemData> {
             );
         }
 
-        const owner = (this.actor as unknown) as DS4Actor; // TODO(types): Improve so that the concrete Actor type is known here
+        const ownerDataData = ((this.actor as unknown) as DS4Actor).data.data; // TODO(types): Improve so that the concrete Actor type is known here
         const weaponBonus = this.data.data.weaponBonus;
         const combatValue = await this.getCombatValueKeyForAttackType(this.data.data.attackType);
-        const checkTargetValue = (owner.data.data.combatValues[combatValue].total as number) + weaponBonus;
-        await createCheckRoll(checkTargetValue, { rollMode: game.settings.get("core", "rollMode") }); // TODO: Get maxCritSuccess and minCritFailure from Actor once we store them there
+        const checkTargetValue = (ownerDataData.combatValues[combatValue].total as number) + weaponBonus;
+        await createCheckRoll(checkTargetValue, {
+            rollMode: game.settings.get("core", "rollMode"),
+            maxCritSuccess: ownerDataData.rolling.maximumCoupResult,
+            minCritFailure: ownerDataData.rolling.minimumFumbleResult,
+        });
     }
 
     private async getCombatValueKeyForAttackType(attackType: AttackType): Promise<"meleeAttack" | "rangedAttack"> {