diff --git a/1.2/Defs/ThingDef/ThingDef_Weapons.xml b/1.2/Defs/ThingDef/ThingDef_Weapons.xml
index 2839d6d..73853bd 100644
--- a/1.2/Defs/ThingDef/ThingDef_Weapons.xml
+++ b/1.2/Defs/ThingDef/ThingDef_Weapons.xml
@@ -923,4 +923,88 @@
       <graphicClass>Graphic_Single</graphicClass>
     </graphicData>
   </ThingDef>
+
+  <!--==================================== 일회용 레일건 ====================================-->
+  <ThingDef ParentName="PN_BaseGun">
+    <defName>PN_PrototypeRailGun</defName>
+    <label>prototype rail gun</label>
+    <description>...</description>
+    <tickerType>Normal</tickerType>
+    <techLevel>Spacer</techLevel>
+    <graphicData>
+      <texPath>Things/Weapons/PNPrototypeRailGun</texPath>
+      <graphicClass>Graphic_Single</graphicClass>
+    </graphicData>
+    <statBases>
+      <MarketValue>1000</MarketValue>
+      <Mass>8</Mass>
+      <RangedWeapon_Cooldown>4.5</RangedWeapon_Cooldown>
+    </statBases>
+    <weaponTags>
+      <li>PN_PrototypeRailGun</li>
+      <li>PN_SingleUse</li>
+    </weaponTags>
+    <tradeTags>
+      <li>ExoticMisc</li>
+    </tradeTags>
+    <thingSetMakerTags>
+      <li>SingleUseWeapon</li>
+      <li>RewardStandardLowFreq</li>
+    </thingSetMakerTags>
+    <verbs>
+      <li>
+        <verbClass>Verb_ShootOneUse</verbClass>
+        <hasStandardCommand>true</hasStandardCommand>
+        <defaultProjectile>PN_Bullet_PrototypeRailGun</defaultProjectile>
+        <forcedMissRadius>1.9</forcedMissRadius>
+        <warmupTime>4.5</warmupTime>
+        <ai_AvoidFriendlyFireRadius>8</ai_AvoidFriendlyFireRadius>
+        <range>35.9</range>
+        <burstShotCount>1</burstShotCount>
+        <soundCast>InfernoCannon_Fire</soundCast>
+        <soundCastTail>GunTail_Heavy</soundCastTail>
+        <onlyManualCast>true</onlyManualCast>
+        <targetParams>
+          <canTargetLocations>true</canTargetLocations>
+        </targetParams>
+        <muzzleFlashScale>14</muzzleFlashScale>
+      </li>
+    </verbs>
+    <tools>
+      <li>
+        <label>barrel</label>
+        <capacities>
+          <li>Blunt</li>
+        </capacities>
+        <power>11.7</power>
+        <cooldownTime>2.6</cooldownTime>
+      </li>
+    </tools>
+    <comps>
+      <li Class="CompProperties_Explosive">
+        <explosiveRadius>7.8</explosiveRadius>
+        <explosiveDamageType>Bomb</explosiveDamageType>
+        <requiredDamageTypeToExplode>Flame</requiredDamageTypeToExplode>
+      </li>
+      <li Class="CompProperties_BiocodableWeapon"/>
+    </comps>
+    <equippedAngleOffset>45</equippedAngleOffset>
+  </ThingDef>
+
+  <ThingDef ParentName="BaseBullet">
+    <defName>PN_Bullet_PrototypeRailGun</defName>
+    <label>Prototype Rail Gun Bullet</label>
+    <graphicData>
+      <texPath>Things/Projectile/Rocket_Big</texPath>
+      <graphicClass>Graphic_Single</graphicClass>
+      <shaderType>TransparentPostLight</shaderType>
+    </graphicData>
+    <thingClass>Projectile_DoomsdayRocket</thingClass>
+    <projectile>
+      <damageDef>Bomb</damageDef>
+      <!-- Use default damage from explosion def -->
+      <explosionRadius>7.8</explosionRadius>
+      <speed>50</speed>
+    </projectile>
+  </ThingDef>
 </Defs>
\ No newline at end of file
diff --git a/Textures/Things/Weapons/PNPrototypeRailGun.png b/Textures/Things/Weapons/PNPrototypeRailGun.png
new file mode 100644
index 0000000..92f011f
Binary files /dev/null and b/Textures/Things/Weapons/PNPrototypeRailGun.png differ