diff --git a/src/main/java/com/atsuishio/superbwarfare/data/gun/GunData.java b/src/main/java/com/atsuishio/superbwarfare/data/gun/GunData.java
index bc7385b2d..a4f36eafd 100644
--- a/src/main/java/com/atsuishio/superbwarfare/data/gun/GunData.java
+++ b/src/main/java/com/atsuishio/superbwarfare/data/gun/GunData.java
@@ -301,6 +301,7 @@ public class GunData {
     public double recoilY() {
         return defaultGunData().recoilY;
     }
+
     public double recoil() {
         return defaultGunData().recoil;
     }
@@ -334,7 +335,7 @@ public class GunData {
     }
 
     public int rpm() {
-        return (defaultGunData().rpm + item.getCustomRPM(stack));
+        return Mth.clamp(defaultGunData().rpm + item.getCustomRPM(stack), 1, 114514);
     }
 
     public int burstAmount() {
diff --git a/src/main/java/com/atsuishio/superbwarfare/event/ClientEventHandler.java b/src/main/java/com/atsuishio/superbwarfare/event/ClientEventHandler.java
index eaf31e529..99c042954 100644
--- a/src/main/java/com/atsuishio/superbwarfare/event/ClientEventHandler.java
+++ b/src/main/java/com/atsuishio/superbwarfare/event/ClientEventHandler.java
@@ -545,10 +545,7 @@ public class ClientEventHandler {
             cantFireTime = Mth.clamp(cantFireTime - 6 * speed * times, 0, 40);
         }
 
-        int rpm = data.rpm() + customRpm;
-        if (rpm == 0) {
-            rpm = 600;
-        }
+        int rpm = Mth.clamp(data.rpm() + customRpm, 1, 114514);
 
         for (Perk.Type type : Perk.Type.values()) {
             var instance = data.perk.getInstance(type);