diff --git a/src/com/massivecraft/massivecore/cmd/arg/ARNullable.java b/src/com/massivecraft/massivecore/cmd/arg/ARNullable.java
index 664b9556..4d4f7212 100644
--- a/src/com/massivecraft/massivecore/cmd/arg/ARNullable.java
+++ b/src/com/massivecraft/massivecore/cmd/arg/ARNullable.java
@@ -1,44 +1,106 @@
 package com.massivecraft.massivecore.cmd.arg;
 
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.Collections;
+import java.util.List;
+
 import org.bukkit.command.CommandSender;
 
 import com.massivecraft.massivecore.MassiveCore;
 import com.massivecraft.massivecore.MassiveException;
+import com.massivecraft.massivecore.collections.MassiveList;
 
-public class ARNullable<T> extends ARWrapper<T>
+public class ARNullable<T> extends ARAbstract<T>
 {
 	// -------------------------------------------- //
 	// FIELDS
 	// -------------------------------------------- //
 	
 	protected AR<T> innerArgReader;
-	@Override public AR<T> getInnerArgReader() { return this.innerArgReader; }
+	public AR<T> getInnerArgReader() { return this.innerArgReader; }
+	
+	protected Collection<String> nulls;
+	public Collection<String> getNulls() { return this.nulls; }
 	
 	// -------------------------------------------- //
-	// INSTANCE & CONSTRUCT
+	// INSTANCE
 	// -------------------------------------------- //
 	
+	public static <T> ARNullable<T> get(AR<T> inner, Collection<String> nulls)
+	{
+		return new ARNullable<T>(inner, nulls);
+	}
+	
+	public static <T> ARNullable<T> get(AR<T> inner, String... nulls)
+	{
+		return new ARNullable<T>(inner, nulls);
+	}
+	
 	public static <T> ARNullable<T> get(AR<T> inner)
 	{
 		return new ARNullable<T>(inner);
 	}
 	
+	// -------------------------------------------- //
+	// CONSTRUCT
+	// -------------------------------------------- //
+	
+	public ARNullable(AR<T> inner, Collection<String> nulls)
+	{
+		if (inner == null) throw new NullPointerException("inner");
+		if (nulls == null) nulls = Collections.emptySet();
+		
+		this.innerArgReader = inner;
+	}
+	
+	public ARNullable(AR<T> inner, String... nulls)
+	{
+		this(inner, Arrays.asList(nulls));
+	}
+	
 	public ARNullable(AR<T> inner)
 	{
-		if (inner == null) throw new IllegalArgumentException("inner param is null");
-		this.innerArgReader = inner;
+		this(inner, MassiveCore.NOTHING_REMOVE);
 	}
 
 	// -------------------------------------------- //
 	// OVERRIDE
 	// -------------------------------------------- //
 
+	@Override
+	public String getTypeName()
+	{
+		return this.getInnerArgReader().getTypeName();
+	}
+	
 	@Override
 	public T read(String arg, CommandSender sender) throws MassiveException
 	{
-		if (MassiveCore.NOTHING_REMOVE.contains(arg)) return null;
+		// Null?
+		if (this.getNulls().contains(arg)) return null;
 		
+		// Inner
 		return this.getInnerArgReader().read(arg, sender);
 	}
+	
+	@Override
+	public Collection<String> getTabList(CommandSender sender, String arg)
+	{
+		// Create Ret
+		List<String> ret = new MassiveList<String>(this.getNulls());
+		
+		// Fill Ret
+		ret.addAll(this.getInnerArgReader().getTabList(sender, arg));
+		
+		// Return Ret
+		return ret;
+	}
+	
+	@Override
+	public boolean allowSpaceAfterTab()
+	{
+		return this.getInnerArgReader().allowSpaceAfterTab();
+	}
 
 }