Original Item: The MG 13 was provided with a blank firing adapter (BFA) and special threaded barrel for training and demonstration purposes. (See Musgrave, pages 163 and 166.) We obtained a very small quantity of these with their specially modified carriers. We are selling these as a package that includes a threaded barrel, modified barrel carrier, blank firing adapter, original combination wrench, and heavy steel soaking canister for the BFA.