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I have one of those in the mailing tube CC sent theirs in. It's tossed in the closet some where....... I think I better keep it in case another zombie manages to dent the CC tube.
The only problem I had was with the original mag tube. A zombie bit it and left a dent in it, it would not reliably feed after that. Since I went to the CC Ti tube I haven't had any problems with zombie bites.