Need a custom adaptor

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Dan Forrester

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Mar 21, 2003
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Anyone know who can make me a custom thread adaptor from .475 X 32tpi to 3/4 X 28tip. Ive got a beretta 81 in .32 acp with a extended threaded barrel in 4.75 X 32tpi and a Thompson Machine Poseidon with 3/4X28 tip threads.

The Poseidon has threaded inserts that give you different thread pitches. such as a 13.5X1 or 1/2X28 to 3/4X28 which screws into the core. However they don't make anything in 4.75 X 32 tpi. I did call TROS who has made me quite a few cool adaptors over the years but he told me he does not offer that at this time. He must be busy right now as he had done excellent custom work for me in the past.

Any leads would be appreciated. Thanks, Dan
 

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Off the top of my head, I can't think of a "off the shelf" offering. However, I have had very good experiences with the machining work done @ Saxonville Armory, including the creation of a customer adapter. You could drop them a note to see what they can do for you.

Cheers.
 
You should be able to find a local machine shop capable of fabricating your thread adapter. On the plus side if you find a good shop you have a source for barrel threading which always comes in handy.
 
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