My brother-in-law bought a used C.G. from jaqua's at the cardinal shoot. he later noticed he did not have a wrench for the exttended choke tubes, He called jaqua's and was told that a choke tube wrench was not needed for that type of tube. Is that possiable if so how do you get them tight. I have a feeling jaqua's just did't want to mess with it. Thanks for any information.