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Posted: 8/30/2004 4:22:10 AM EDT
[Last Edit: 8/30/2004 4:22:51 AM EDT by injun-ear]
Do the dimensions of the AR barrel threads--the design standard--exist as public data? If so, does anyone know of a website?

Link Posted: 8/30/2004 2:54:38 PM EDT
Link Posted: 8/31/2004 3:36:54 AM EDT

Originally Posted By Troy:
The barrel is turned down to 1/2" and threaded 1/2"-28. The only thing I'm not positive is how much is actually threaded. It's about 1/2", but that isn't exact.


Thanks, Troy.

I'm hoping to get a drawing. I'm looking for dimensions and tolerances...the perpendicularity of the washer seat with the bore; straightness and position of the threads; etc..
Link Posted: 8/31/2004 3:44:37 AM EDT
Lots of info here on-site: www.ar15.com/content/manuals/, perhaps what your looking for is there.

Link Posted: 8/31/2004 8:21:48 AM EDT
Link Posted: 8/31/2004 10:04:27 AM EDT
I too am looking for the same information.
Link Posted: 8/31/2004 11:19:38 AM EDT
Most barrels are threaded .605 from the muzzle back with a .020undercut at the end of the threads for an overall of .625
Link Posted: 8/31/2004 11:57:02 AM EDT
Link Posted: 8/31/2004 12:36:55 PM EDT
I´ve got drawings for the NM barrel. There is dimensions for the threads, barrel extension and flash suppressor. Anyone interested send me an email.

Link Posted: 8/31/2004 6:13:28 PM EDT
Link Posted: 8/31/2004 10:19:52 PM EDT
[Last Edit: 8/31/2004 10:30:13 PM EDT by Tweak]
Link Posted: 8/31/2004 11:46:44 PM EDT
Tweak and other interested,

Drawings sent.

Link Posted: 9/1/2004 2:35:34 AM EDT
Link Posted: 9/1/2004 3:19:15 AM EDT

Thank you

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