Armaments by Design manufactures a comprehensive range of barrel tenon thread protectors out of 6061-T6 aluminium. These protectors are to fit the barrel thread where the barrel screws into your action and the thread size and part number are engraved on the end of the cap. Item sold individually. If you need a different thread protector that we are presently not manufacturing, contact us with the details of your barrel tenon thread and we will contact you with a price and delivery time.