Jericho 941S 9mm threaded barrel pattern

[Kratos]

Hello,

Looking for some help from the machinist community and/or owners of a Jericho 941S. From what I can determine with my set of calipers it's threaded 1/2-20 tpi. I've only found older .22 cal firearms that have this thread pattern, no 9mm. It doesn't seem to be metric either from my limited knowledge on thread patterns. Can anyone confirm this so I can find and add a muzzle brake/compensator with a matching thread pattern. Can't get an answer from the importer, North Sylva, after several calls and emails.

Thanks,
Kratos

 

[B_Rayner]

My 941s is not 1/2-28, I think it's M13.5x1RH or M13x1RH

 

[marshall]

I have a break I bought with mine, but on a indoor range , I don't like it, I could send a picture and spec. in couple days, I do have gauges, but everything is in boxes as I am getting ready for a new floor in shop, and may, may not find them
I would think it would be metric

 

[B_Rayner]

That would be great, thank you

 

[marshall]

get to S.C.?

 

[B_Rayner]

get to S.C.?

Do you mean Swift Current?

 

[marshall]

yes

 

[B_Rayner]

I do drive to swift occasionally, the next day I'll be in swift is around 5pm on the 8th

 

[B_Rayner]

I was in contact with IWI.US and they can't even tell me what it is other then "it looks like a common thread count and pitch".... They weren't any help lol

 

[marshall]

O.K. Guys , I found my crapy thread gauge, good one is MIA for a while. With calipers it measures 1/2 at the treads and 18 threads per inch.
My metric gauges (C.T. one) has no metric that matches it is about 12.mm diam., dead on 1/2" on the threads.
Old Stanley wood planes do the same , odd size pitch I took pictures if I can get them loaded, I am better at fixing than pictures.
Well I got 2 out of 3 so that will work I guess.

 

[B_Rayner]

O.K. Guys , I found my crapy thread gauge, good one is MIA for a while. With calipers it measures 1/2 at the treads and 18 threads per inch.
My metric gauges (C.T. one) has no metric that matches it is about 12.mm diam., dead on 1/2" on the threads.
Old Stanley wood planes do the same , odd size pitch I took pictures if I can get them loaded, I am better at fixing than pictures.View attachment 195778
Well I got 2 out of 3 so that will work I guess.

Hey I sent you a pm.