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AR15.COM
4/26/2009 6:58:40 PM EDT
I bought an IJ70 yesterday that has had a Federal Arms 9X18 stainless steel threaded barrel already installed.

I'm looking for a thread protector and know that the threads are 1/2X32 (as per the gunsmith at the store I bought it from). I don't know the outer diameter of the barrel but It appears to be around 0.5". The bottom of the threads does have a 'gap' with not threads which I assume is for a set screw to push against.

Does anyone here know what the outer barrel diameter is and if there is a source for a thread protector for it? I've tried Googling Federal Arms information for a total of an hour and I just can't find any good information on this.

I'd like to keep this barrel but it would be nice to have a thread protector on it.

I welcome any input or advice.
4/27/2009 7:30:43 PM EDT
[#1]
I could have sworn there was some detailed technical info about this on Makarov.com but when I went to check just now, not only could I not find any reference, it looks like the website has been changed a little too.

I'll keep an eye out.

Good luck finding the info you need.
5/2/2009 6:41:13 PM EDT
[#2]
Quoted:
I could have sworn there was some detailed technical info about this on Makarov.com but when I went to check just now, not only could I not find any reference, it looks like the website has been changed a little too.

I'll keep an eye out.

Good luck finding the info you need.


Yeah, I had checked there too.  I posted in the Makarov section of Gunboards.com and didn't get much.
5/5/2009 12:05:21 PM EDT
[#3]
Try Google thread protector 1/2X32
5/6/2009 7:59:34 PM EDT
[#4]
go here, http://www.trosusa.com/
contact Mark McWIllis there. he should have some already, if not he'll make it.
if its the old Federal Arms Corp (Fac) barrel. its a plane stainless steel barrel make in South Korea using a weeker stainless steel.
there was some FBI sting involving the Makarov with FAC threaded barrels a while back, it led to the company going out of business.
5/7/2009 1:07:55 PM EDT
[#5]
Quoted:
go here, http://www.trosusa.com/
contact Mark McWIllis there. he should have some already, if not he'll make it.
if its the old Federal Arms Corp (Fac) barrel. its a plane stainless steel barrel make in South Korea using a weeker stainless steel.
there was some FBI sting involving the Makarov with FAC threaded barrels a while back, it led to the company going out of business.


I sent you an IM.

Any problems with the barrel ie. do they wear out faster?