diff --git a/src/dark/api/ISentryGun.java b/src/dark/api/ISentryGun.java
new file mode 100644
index 000000000..30d5aa319
--- /dev/null
+++ b/src/dark/api/ISentryGun.java
@@ -0,0 +1,9 @@
+package dark.api;
+
+/** Applied to tile entities that are sentry guns
+ * 
+ * @author DarkGuardsman */
+public interface ISentryGun
+{
+
+}
diff --git a/src/dark/core/prefab/sentry/BlockSentryGun.java b/src/dark/core/prefab/sentry/BlockSentryGun.java
new file mode 100644
index 000000000..46656d738
--- /dev/null
+++ b/src/dark/core/prefab/sentry/BlockSentryGun.java
@@ -0,0 +1,115 @@
+package dark.core.prefab.sentry;
+
+import java.util.Set;
+
+import com.builtbroken.common.Pair;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.material.Material;
+import net.minecraft.tileentity.TileEntity;
+import dark.core.common.DarkMain;
+import dark.core.prefab.machine.BlockMachine;
+import dark.core.registration.ModObjectRegistry;
+
+/** Actual block that is the sentry gun. Mainly a place holder as the sentry guns need something to
+ * exist threw that is not an entity.
+ * 
+ * @author DarkGuardsman */
+public class BlockSentryGun extends BlockMachine
+{
+    static TileEntitySentry[] sentryGuns = new TileEntitySentry[16];
+    static String[] sentryGunNames = new String[16];
+    static int registeredGuns = 0;
+    static int[] sentryBlockIds = new int[1];
+
+    public BlockSentryGun(int v)
+    {
+        super(DarkMain.CONFIGURATION, "DMSentryGun" + v, Material.iron);
+        this.setResistance(100);
+        this.setHardness(100);
+    }
+
+    /** Make sure to let others know your claimed IDs or add configs so we don't run into issues. As
+     * well the slot is the meta data value the gun will be created with. Any number over 15 will
+     * create another block then use its 16 meta values. */
+    public static void registerSentry(int slot, String name, Class<? extends TileEntitySentry> clazz)
+    {
+        try
+        {
+            //Expands the sentry gun list as needed;
+            if (slot > sentryGuns.length)
+            {
+                int b = (slot / 16) + 1;
+                sentryBlockIds = new int[b];
+                TileEntitySentry[] guns = new TileEntitySentry[b * 16];
+                for (int s = 0; s < sentryGuns.length; s++)
+                {
+                    guns[s] = sentryGuns[s];
+                }
+                sentryGuns = guns;
+            }
+            if (clazz != null && sentryGuns[slot] == null)
+            {
+                int b = (slot / 16);
+                sentryBlockIds[b] = -1;
+                sentryGuns[slot] = clazz.newInstance();
+                sentryGunNames[slot] = name;
+                registeredGuns++;
+            }
+            else if (sentryGuns[slot] != null)
+            {
+                throw new IllegalArgumentException("Sentry gun slot " + slot + " is already occupied by " + sentryGuns[slot] + " when adding " + clazz);
+            }
+
+        }
+        catch (InstantiationException e)
+        {
+            e.printStackTrace();
+        }
+        catch (IllegalAccessException e)
+        {
+            e.printStackTrace();
+        }
+        catch (IllegalArgumentException e)
+        {
+            throw e;
+        }
+        catch (Exception e)
+        {
+            e.printStackTrace();
+        }
+    }
+
+    /** Called by the core when this block is about to be created. If there are no registered sentry
+     * guns then this block doesn't exist. */
+    public static void createAndRegister()
+    {
+        if (registeredGuns > 0)
+        {
+            for (int b = 0; b < sentryBlockIds.length; b++)
+            {
+                if (sentryBlockIds[b] == -1)
+                {
+                    Block block = ModObjectRegistry.createNewBlock("DMSentryGun" + b, DarkMain.MOD_ID, BlockSentryGun.class);
+                    sentryBlockIds[b] = block.blockID;
+                }
+            }
+            for (int t = 0; t < sentryGuns.length; t++)
+            {
+
+            }
+        }
+    }
+
+    @Override
+    public void getTileEntities(int blockID, Set<Pair<String, Class<? extends TileEntity>>> list)
+    {
+        for (int t = 0; t < sentryGuns.length; t++)
+        {
+            if (sentryGuns[t] != null)
+            {
+                list.add(new Pair("DMSentry_" + sentryGunNames[t], sentryGuns[t].getClass()));
+            }
+        }
+    }
+}
diff --git a/src/dark/core/prefab/sentry/EntitySentryGun.java b/src/dark/core/prefab/sentry/EntitySentryGun.java
new file mode 100644
index 000000000..37c5db55a
--- /dev/null
+++ b/src/dark/core/prefab/sentry/EntitySentryGun.java
@@ -0,0 +1,40 @@
+package dark.core.prefab.sentry;
+
+import net.minecraft.entity.Entity;
+import net.minecraft.nbt.NBTTagCompound;
+import net.minecraft.world.World;
+
+/** Since we are going to need an entity for the sentries to take damage with we are actually going
+ * to do more with the entity than redirect damage.
+ * 
+ * @author DarkGuardsman */
+public class EntitySentryGun extends Entity
+{
+
+    public EntitySentryGun(World par1World)
+    {
+        super(par1World);
+    }
+
+    @Override
+    protected void entityInit()
+    {
+        // TODO Auto-generated method stub
+        
+    }
+
+    @Override
+    protected void readEntityFromNBT(NBTTagCompound nbttagcompound)
+    {
+        // TODO Auto-generated method stub
+        
+    }
+
+    @Override
+    protected void writeEntityToNBT(NBTTagCompound nbttagcompound)
+    {
+        // TODO Auto-generated method stub
+        
+    }
+
+}
diff --git a/src/dark/core/prefab/sentry/ItemBlockSentry.java b/src/dark/core/prefab/sentry/ItemBlockSentry.java
new file mode 100644
index 000000000..40f4b14b4
--- /dev/null
+++ b/src/dark/core/prefab/sentry/ItemBlockSentry.java
@@ -0,0 +1,30 @@
+package dark.core.prefab.sentry;
+
+import net.minecraft.block.Block;
+import net.minecraft.item.ItemStack;
+import dark.core.prefab.ItemBlockHolder;
+
+/** Item block that is the unplaced sentry gun. All sentry gun data is held by NBT to allow the sentry
+ * gun to exist without metadata limits.
+ * 
+ * @author DarkGuardsman */
+public class ItemBlockSentry extends ItemBlockHolder
+{
+    public ItemBlockSentry(int id)
+    {
+        super(id);
+    }
+
+    @Override
+    public int getMetadata(int damage)
+    {
+        return 0;
+    }
+
+    @Override
+    public String getUnlocalizedName(ItemStack itemStack)
+    {
+        return Block.blocksList[this.getBlockID()].getUnlocalizedName() + "." + itemStack.getItemDamage();
+    }
+
+}
diff --git a/src/dark/core/prefab/sentry/TileEntityTerminal.java b/src/dark/core/prefab/sentry/TileEntityTerminal.java
new file mode 100644
index 000000000..1e232c4a8
--- /dev/null
+++ b/src/dark/core/prefab/sentry/TileEntityTerminal.java
@@ -0,0 +1,6 @@
+package dark.core.prefab.sentry;
+
+public class TileEntityTerminal
+{
+
+}