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Bronze
  • Joined Aug 2005
  • Posts 503
  • Location USA MO, USA
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Bronze
  • Joined Aug 2005
  • Posts 503
  • Location USA MO, USA
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Posted: 8/28/2012 7:32:33 PM EST
Anyone have experience with the Green Mountain AR-15 barrels? I have built several lowers but I'm looking to build my first upper and have had trouble finding a decent economy barrel. I'm not looking to build a tack driver but to assemble a basic AR shooter using non-exotic parts. The Green Mountain barrels seem to have a respectable reputation but my research also shows a few detractors. I'm seeking some first hand experience from AR15.com members and contributors. Most of the recent threads did not report much on performance or overall quality.

I've found a supplier with the Green Mountain GM-M4 16" 5.56mm NATO 1:8 Twist, with extension, chrome lined bore and chamber, 41V50 vanadium steel, uses a .750 gas block for $139.95.

The most important rule in a gunfight is: Always win and cheat if necessary.
Basic
  • Joined Jul 2012
  • Posts 199
  • Location USA TX, USA
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Basic
  • Joined Jul 2012
  • Posts 199
  • Location USA TX, USA
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Posted: 8/28/2012 9:58:50 PM EST
Originally Posted By SGT69:
Anyone have experience with the Green Mountain AR-15 barrels? I have built several lowers but I'm looking to build my first upper and have had trouble finding a decent economy barrel. I'm not looking to build a tack driver but to assemble a basic AR shooter using non-exotic parts. The Green Mountain barrels seem to have a respectable reputation but my research also shows a few detractors. I'm seeking some first hand experience from AR15.com members and contributors. Most of the recent threads did not report much on performance or overall quality.

I've found a supplier with the Green Mountain GM-M4 16" 5.56mm NATO 1:8 Twist, with extension, chrome lined bore and chamber, 41V50 vanadium steel, uses a .750 gas block for $139.95.

http://t3.gstatic.com/images?q=tbn:ANd9GcRXBBplFATnfP2k93q1UlUtt2HRcnvF3V­HkeMi6Bdcve7AjtAgV


I have never tried a GM AR barrel, but I have used their AK barrels before. Their AK barrels are the nicest and most accurate of the US-made ones that I have owned. I have read reviews about the GM AR barrels before, and all provided positive feedback. For such a low price, you really don't have much to lose by trying one out.
Basic
  • Joined Dec 2011
  • Posts 143
  • Location USA TX, USA
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Basic
  • Joined Dec 2011
  • Posts 143
  • Location USA TX, USA
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Posted: 8/29/2012 3:44:44 AM EST
No experiance with their Centerfire barrels but they make a very nice 10/22 barrel for the price
Basic
  • Joined Dec 2009
  • Posts 305
  • Location USA USA
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Basic
  • Joined Dec 2009
  • Posts 305
  • Location USA USA
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Posted: 8/29/2012 4:27:09 AM EST
I bought their 1/7 A2:


I almost balked because they charged state tax and fairly high shipping - getting it nudged near $200.... Quality is excellent. Crisp machining. No garish hacked-in lettering. Nice target crown. No burrs inside around gas port. Chamber finish A+. Perfect head space. About 200 rounds through it and it is about 1.5 moa at 100 meters with black hills 77gr, but I'm just getting started with it - I see sub moa potential.
Basic
  • Joined Jun 2009
  • Posts 1050
  • Location USA LA, USA
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Basic
  • Joined Jun 2009
  • Posts 1050
  • Location USA LA, USA
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Posted: 8/29/2012 9:59:57 AM EST
I've used their 1022 barrel and it's a good shooter. I suspect their .223 barrel ought to be good as well.
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Bronze
  • Joined Sep 2004
  • Posts 4559
  • Location USA TX, USA
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Bronze
  • Joined Sep 2004
  • Posts 4559
  • Location USA TX, USA
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Military
Posted: 8/29/2012 10:59:14 AM EST
I've got one of their A1 barrels cut to 16", is working pretty well for me so far.
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