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Posted: 4/28/2011 9:21:28 AM EDT
Anybody know if anybody makes a 300 blackout barrel threaded 1/2"x28 instead of the usual 5/8" x 24?
Link Posted: 4/28/2011 9:42:59 AM EDT
Which Barrel?

Rem 700 is threaded in 5/8 - 24

AR15 is threaded in 5/8 - 24

Haha.. I guess it doesn't matter...
Link Posted: 4/28/2011 9:56:33 AM EDT
I need it for an AR.

My suppressor is threaded 1/2x28.  I know I could get an adapter for it, I would just rather find a barrel already threaded 1/2x28, but maybe they don't make them that way...
Link Posted: 4/28/2011 9:58:01 AM EDT
9mm suppressor?
Link Posted: 4/28/2011 10:16:38 AM EDT
yeah, it's a 9mm suppressor.  I called Gentech, and they said it would be fine to use as long as I was using subsonic blackout rounds...
Link Posted: 4/28/2011 1:03:28 PM EDT
Send it off to a reputable shop like ADCO and have them turn it down. The threads shouldn't be cut so deep that a 1/2" wouldn't clean up completely then thread it to work. Call the barrel manufacturer and ask them how deep the threads are cut. Turning it down will also ensure concentricity.
Link Posted: 4/28/2011 1:06:23 PM EDT
I had my gunsmith make both of my barrels...I 'm sure you could get some one to builed your barrel how you want,
I use Kevin  at Ole's gunshop in Salem Or. you might check with them. 503-585-3889
Link Posted: 4/28/2011 1:57:45 PM EDT
5/8x24 minor is .574  so turning these threads down for .500 major or 1/2x28 should be easy.
Link Posted: 4/30/2011 12:18:10 PM EDT
I can do it - I thread all kinds of barrels. I also can make adapters, either custom ones - or a large run via CNC lathes.

Anyway, if you are interested, just PM me and let me know.
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