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Old December 15, 2011, 11:08 AM   #1
Hunterpeaks
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Join Date: June 16, 2011
Posts: 20
Need help: identify barrel on Mac10 for correct suppressor

Looking to get a suppressor for my Mac10 FA.
Having a hard time finding one that might fit though.
I measured the thread pitch with a metric gauge and it's 1.0.
Would be nice to figure out who makes this barrel though and contact
them to find out for sure what thread pitch is and if I can even get a suppressor for it.
Here are some pics.
thanks all.
H
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Old December 15, 2011, 03:15 PM   #2
Willie Lowman
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Measure the diameter. Measure the number of turns per inch (or per centimeter)

Or get a regular upper and use one of the many Mac 10 cans on the market.
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Old December 16, 2011, 10:19 AM   #3
Hunterpeaks
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Join Date: June 16, 2011
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O.k., outside diameter of barrel= .61inch
threads 24tpi so looks like thread is 24 x 1

Any thoughts on what the manufacturer of the barrel or flash suppressor might be? Obviously if I could find that out, then I'll know for certain thread size and can see if I can find an appropriate can for it or have it re-threaded.
thanks.

H
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Old December 16, 2011, 11:29 AM   #4
Willie Lowman
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Another half assed explanation...


It's Diameter x T.P.I.

My Ruger is 1/2x28. (half inch diameter threads, 28 turns per inch)

My Sig is 13.5x1 mm (thirteen and a half millimeters diameter, one turn per millimeter)



Also, do not measure from the the outside diameter of the barrel. You measure the O.D. of the threads. I am guessing you have a 9/16x24 threaded barrel. 9/16x24 is a thread pitch used by some manufacturers for .45 acp stuff. My calculator tells me that 9/16 is .5625. If your threads are in fact .61, don't know what it would be.

Hope this helps more than it confuses.
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Last edited by Willie Lowman; December 16, 2011 at 11:48 AM.
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