January 21, 2017, 12:20 PM
AWMPSig Threaded barrel issue, thoughts?
I have a SIG 320 Carry TACOPS with a Sig Threaded 9mm barrel.
Only one problem, I can't get the thread protector off the barrel. It is on there tight.
I have used every oil I have thinking it might break it free, no luck.
Thoughts?
January 21, 2017, 12:38 PM
ChowserDid you try turning it the other way?
I think the factory barrels are metric threaded (left hand)
January 21, 2017, 12:50 PM
AWMPTried turning both ways, and not movement at all.
January 21, 2017, 01:51 PM
GaryBFTry some cold/heat next. Put the barrel in the freezer for a few hours and then try it. If that doesn't work, apply heat judiciouusly. The thing is you don't know if it is just tight or they used thread locker.
January 21, 2017, 03:05 PM
ChowserHopefully the cold/heat works. I remember having issues with my S&W MP22C. I ended up wrapping the thread protector in tape and using vice grips to get it off. They had a gorilla working in the factory is my guess.
January 21, 2017, 10:51 PM
AWMPFinally got it off, thanks for all the ideas.
I was happy, then I tried my new Gemtech Suppressor and it looks like Sig uses different threads and my new suppressor will not fit.
What a long day.
January 22, 2017, 06:49 AM
ChowserYeah, I'm assuming the factory ones are 13x1 LH threading and your Gemtech is 1/2 x 28.
You can either get an adapter (which will make the thing stick out further) or get another piston for your Gemtech or another threaded barrel. It all comes down to what you want to spend. (I'd buy the piston if you plan on having any other metric threaded guns. I almost bought a piston to use on my MPX but since I was shortening the MPX barrel, I just had it rethreaded to fit my Tundra)
January 22, 2017, 12:09 PM
AWMPAnother piston is what I'm thinking. Best place to buy one?
quote:
Originally posted by Chowser:
Yeah, I'm assuming the factory ones are 13x1 LH threading and your Gemtech is 1/2 x 28.
You can either get an adapter (which will make the thing stick out further) or get another piston for your Gemtech or another threaded barrel. It all comes down to what you want to spend. (I'd buy the piston if you plan on having any other metric threaded guns. I almost bought a piston to use on my MPX but since I was shortening the MPX barrel, I just had it rethreaded to fit my Tundra)
January 22, 2017, 04:26 PM
ChowserGemtech direct or try Silencer Shop.
January 24, 2017, 01:23 PM
Blaque Jacque ShellaqueSig & HK use M13.5 X 1LH threads on their 9mm barrels.
February 10, 2017, 10:54 AM
hansgretelI have the exact same pistol and when I got it home after purchase had this exact same problem. The thread protector was over-tightened (my guess is due to the LH threads and the gun shop guys trying to loosen it and unintentionally tightening it instead).
Anyway, I used a cloth on the outside of the thread protector and a pair of large vise grips for added leverage (being careful to get a good grip on the TP while not over tight on the threads or end of the barrel).
That did the trick for me.
February 11, 2017, 06:11 PM
bumperSave your old leather belts. A good scrap of leather is a lot safer to use between a knurled surface and the jaws of a vise-grip pliers than a piece of cloth.
March 03, 2017, 07:14 PM
GoingQuietquote:
Originally posted by Blaque Jacque Shellaque:
Sig & HK use M13.5 X 1LH threads on their 9mm barrels.
Not always. Some Sig barrels are 500x28 but not the 320's.
For every rule, there's an exception to the rule.
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