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Discussion Starter · #1 · (Edited)
Unfortunately that thread pitch is unique to only a few rifles, including the Hk G3K. I would suggest having the barrel rethreaded to the 5/8x24 and then you’ll have a much larger range of muzzle break and suppressor options.

This what SIG Pro store said to me. They don't make a 15x1RH threaded adapter for the SIG 7.62 QD.

Is this possible??
or get a suppressor adapter machined by a local gunsmith to do this??

Thanks.
 

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My recommendation. Let me buy your HK G3k barrel because the thread pitch sucks, take the cash and buy an aftermarket barrel with the thread pitch you desire.

Just making a suggestion and polite offer :)
 

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Probably too late for this, but I would recommend getting a suppressor from a company that actually makes a 15x1 muzzle device. AAC, silencerco, Griffin etc.
 

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According to what I was told by a builder I don't think there would be enough material to successfully rethread the barrel. I could be mistaken because I wanted to change a PTR barrel from 5/8x24 threads to 15x1RH. You could call Ghilliebear at PCS and ask him he is very helpful and an excellent HK gun smith.

I do not own a suppressor but I am sure there are many here that can tell you which ones are available with the threading you have and also where you can find different adapters with the proper threads.
 

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The minor diameter on the 15mm x1 IIRC is 13.77 which is ~0.542 in diameter.... Too small to make the barrel work. Best contact RCM and see what he is willing to do/lean in etc...
 

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Discussion Starter · #6 · (Edited)
I email RCM yesterday ,see if they can make a barrel with proper thread and size( HKG3K) I building this rifle. I have not purchase the barrel yet.
I found bunch of parts for chapter than online. Some part will be surplus and some new and the barrel will be new and the REC.( PTR.) I will be a SBR and Suppressed. ( I have NFA Trust)
I am doing the research first then buy the part.
 

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Discussion Starter · #7 ·
Just go email from RCM, they do not do custom work on their barrels.
So .....might have a adapter made or get a SilencerCO Saker 762.
 
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