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Page AR-15 » Rimfire and Pistol Calibers
AR Sponsor: bravocompany
Posted: 11/1/2009 11:40:16 AM EDT
I am looking to start a 9mm AR build. The only necessary requirement I have for an upper is for it to be threaded 1/2x28 at the muzzle so I can attact a AAC suppressor. What are the available uppers out there. I found that Spikes tactical has them but was wondering if there were others.
Link Posted: 11/1/2009 1:24:31 PM EDT
[#1]
9mm barrels usually are specifically NOT threaded 1/2x28 due to the dangers of attaching a standard muzzle device sized for 5.56/.223.  Usually they are custom or specialty products.
Link Posted: 11/1/2009 1:50:24 PM EDT
[#2]
you can get 1/2x28 9mm uppers from oly i know several people that have them
Link Posted: 11/1/2009 3:11:31 PM EDT
[#3]
My spikes 9mm barrel was threaded 1/2 x 28
Link Posted: 11/1/2009 5:08:46 PM EDT
[#4]
The oly is 5/8x24 standard but 1/2x28 on request. Since you mentioned the can you should also know the oly is 1:16 twist barrel while the colt style is 1:10.
Link Posted: 11/1/2009 5:37:12 PM EDT
[#5]
Got mine from Spikes 1/2 x 28
Link Posted: 11/1/2009 9:25:06 PM EDT
[#6]
2 of my Spikes are threaded 1/2x28 and the Noveske is 1/2x28
Link Posted: 11/1/2009 10:03:17 PM EDT
[#7]
I got a bbl from Adco that is 1/2x28.
Link Posted: 11/2/2009 12:40:25 AM EDT
[#8]
Quoted:
Got mine from Spikes 1/2 x 28


same
Link Posted: 11/2/2009 3:38:48 AM EDT
[#9]
RRA and Colt barrels are 1/2 X 36. Just in case you were looking at them. I'm sure any machine shop could rethread to your pattern but you would lose a bit of barrel length.
Page AR-15 » Rimfire and Pistol Calibers
AR Sponsor: bravocompany
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