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10/14/2014 10:03:53 PM EDT
I bought an ATI AR-15 Omni Hybrid and as I was removing the flash hider, the barrell twisted.  I know that most uppers are notched and that the barrell has a tooth that fits inside the notch on the upper to prevent twisting.  Are ATI Omni Hybrid AR's not made the same way?
10/14/2014 10:27:08 PM EDT
[#1]
I'm not familiar with this brand, but I have never seen a barrel that didn't have an indexing pin in the barrel extension. It is most likely that you sheered off the pin and will need to buy/install a new one
10/14/2014 10:38:42 PM EDT
[#2]
Get a hold of them, I think they have an account for the mfg's forum, too.  That sounds pretty sketchy.
10/14/2014 10:40:39 PM EDT
[#3]
Quote History
Quoted:
Get a hold of them, I think they have an account for the mfg's forum, too.  That sounds pretty sketchy.
View Quote


It's quite common. You never want to crank on a muzzle device without a barrel vise. He likely sheered the index pin and the barrel and extension rotated.

OP look at your feed ramps in the upper - they'll probably be crooked now (no longer align with the barrel extension)
10/14/2014 11:38:54 PM EDT
[#4]
I had an ATI HD16 do the same thing to me.  The barrel twisted in the extension.  I made a noob mistake. Figured that if I held the gun with one hand and turned the flashider off with a short open end wrench, there wouldn't be enough torque to hurt anything.  That barrel spun off so I easy I couldn't believe it.
10/15/2014 2:04:43 PM EDT
[#5]
That's what I thought...haha
10/15/2014 4:55:31 PM EDT
[#6]
Would anyone have a good suggestion for another barrel for someone on a tight budget?
10/15/2014 5:07:44 PM EDT
[#7]
Yes a barrel vise is in order here. But an extension that twists off that easy is an issue too.
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