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Page AR-15 » Rimfire and Pistol Calibers
AR Sponsor: bravocompany
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Posted: 10/2/2014 1:55:14 AM EDT
AR15,


I recently aquired a AR Pistol in 9mm long story short I purchased a muzzle brake in 1/2x36 pitch thread, the barrel is threaded 5/8...

Questions:
Are there 5/8 to 1/2 adapters for 9mm in existence? 
It seems 308/7.62 brakes have the right pitch but not diameter can I just by a drill bit and open up the hole?
Or are there 9mm brakes in 5/8?

Looking for some advice and or direction in your knowledge/experience. Thank you in advance!

__________________

Link Posted: 10/2/2014 2:10:39 AM EDT
[#1]
there are adapters available but your best bet would be to buy a 308 muzzle device and drill it out using at least 3/8" drill bit which will open it to .375"


Here is an ugly one i found on Ebay

http://www.ebay.com/itm/Muzzle-Brake-for-any-357-Cal-9mm-and-smaller-with-5-8-24-Threads-Black-/261134766910?pt=LH_DefaultDomain_0&hash=item3cccd8533e
Link Posted: 10/2/2014 3:11:17 AM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
there are adapters available but your best bet would be to buy a 308 muzzle device and drill it out using at least 3/8" drill bit which will open it to .375"
View Quote


Probably your best bet.  5/8x24 is pretty odd for 9mm.
Link Posted: 10/2/2014 4:02:17 AM EDT
[#3]
someone probably sent it to ADCO to have it threaded in that pitch because it it leaves a lot more material than a 1/2-36
Link Posted: 10/2/2014 12:28:28 PM EDT
[#4]
Thanks for all the feedback I really appreciate the speedy reply, as I mentioned Im a bit new to the AR Pistol platform let alone in 9mm.

I found out that there is a 5/8 Fake Can that KAK Industries makes that they use for the 458 Socom, and looking that the picture of a 458 with 9mm round I it probably safe to say the 9mm will clear thru.

Link Posted: 10/2/2014 8:41:08 PM EDT
[#5]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Thanks for all the feedback I really appreciate the speedy reply, as I mentioned Im a bit new to the AR Pistol platform let alone in 9mm.

I found out that there is a 5/8 Fake Can that KAK Industries makes that they use for the 458 Socom, and looking that the picture of a 458 with 9mm round I it probably safe to say the 9mm will clear thru.

View Quote


The KAK will clear, their 1/2x28 would clear a 9mm round.
Link Posted: 10/3/2014 4:20:25 PM EDT
[#6]
What brake did you purchase? I have a 1/2x36 9mm and may take it off you hands to help fund your correct brake. Send me an IM
Page AR-15 » Rimfire and Pistol Calibers
AR Sponsor: bravocompany
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