This latest release from Master features a Pitot Tube for the MiG-21 F-13 (Fishbed C).  This set includes 2 parts machined out of metal and 6 photo etch fins.  

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The quality of the machining has to be seen to be appreciated........these are amazingly detailed and of the highest quality.  This set includes 1 pitot tube. It is very simple to use on your model, and makes it extremely realistic. Simply cut off the original plastic barrel and drill a hole in the remaining parts and insert the metal barrel using Cyanoacrylate adhesives.

The detail on this metal pitot tube is fantastic and a vast improvement over the plastic pitot tube that comes in the model kit. 

You can purchase these and other fine detail items directly from the Master website.