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Page AR-15 » AR Piston Systems
AR Sponsor: bravocompany
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Posted: 7/28/2015 3:59:28 PM EDT
I'm building a AR from scratch and I'm looking at using a 10.5" barrel and AA Piston kit.  I know you can run into interference issues with some barrels, any recommendations on barrel to use with one of AA piston kits?

If it matters I plan on using  a suppressor with this rifle.
Link Posted: 7/28/2015 4:37:48 PM EDT
[#1]
look at Green Mountain barrels.
Link Posted: 7/28/2015 6:57:46 PM EDT
[#2]
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Quoted:
look at Green Mountain barrels.
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+1

I had no problems with GM when I built my 20" gp build.
Link Posted: 7/29/2015 2:56:00 PM EDT
[#3]
I have a 16" AR-Stoner 6.5 Grendel barrel that worked without modification.
Link Posted: 7/29/2015 3:53:15 PM EDT
[#4]
Link Posted: 7/29/2015 4:00:30 PM EDT
[#5]
What profile barrel are you guys using?  Gov't or M4?
Link Posted: 7/29/2015 9:49:17 PM EDT
[#6]
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Quoted:
What profile barrel are you guys using?  Gov't or M4?
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For most all intents, the Government and M4 profile are the same.
The only difference being the M4 necks down and has a shoulder in the last 3" to accommodate the mount for a grenade launcher.
Since you're not hanging a launcher off a 10.5" barrel, it's an indifferent choice.

If anything I would look for a pencil barrel option if available.
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AR Sponsor: bravocompany
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