They are finally available! The TC9452 Dimension LOC Hand Tool Set. These are the small ratcheting tools needed to change barrels on the TC Dimension Interchangeable Bolt barrel gun system. Normally a set of these tools comes with each complete gun but I have not been able to determine if they come with just a receiver if you were to buy and build the components for your own gun. However I now do stock them on my site at and also sell on Ebay.