The 2 adapters that come with. I take it they have to be installed any time you want a 901 or 808. For some reason I thought it had threads in all the time. Are they both the same? If you want to use a 306 what do you do the atty is so far in the TS. Only about 1/2 inch sticking out with 510. Also see what he means about the close tolerance on the button.
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