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Posted: 8/30/2004 3:22:10 AM EST
[Last Edit: 8/30/2004 3:22:51 AM EST 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 1:54:38 PM EST
Link Posted: 8/31/2004 2:36:54 AM EST

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 2:44:37 AM EST
Lots of info here on-site: www.ar15.com/content/manuals/, perhaps what your looking for is there.

Link Posted: 8/31/2004 7:21:48 AM EST
Link Posted: 8/31/2004 9:04:27 AM EST
I too am looking for the same information.
Link Posted: 8/31/2004 10:19:38 AM EST
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 10:57:02 AM EST
Link Posted: 8/31/2004 11:36:55 AM EST
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 5:13:28 PM EST
Link Posted: 8/31/2004 9:19:52 PM EST
[Last Edit: 8/31/2004 9:30:13 PM EST by Tweak]
Link Posted: 8/31/2004 10:46:44 PM EST
Tweak and other interested,

Drawings sent.

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

Thank you

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