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6/21/2017 8:25:40 PM
Posted: 8/28/2012 8:32:33 PM EDT
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.

Link Posted: 8/28/2012 10:58:50 PM EDT
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.
Link Posted: 8/29/2012 4:44:44 AM EDT
No experiance with their Centerfire barrels but they make a very nice 10/22 barrel for the price
Link Posted: 8/29/2012 5:27:09 AM EDT
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.
Link Posted: 8/29/2012 10:59:57 AM EDT
I've used their 1022 barrel and it's a good shooter. I suspect their .223 barrel ought to be good as well.
Link Posted: 8/29/2012 11:59:14 AM EDT
I've got one of their A1 barrels cut to 16", is working pretty well for me so far.
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