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Posted: 12/1/2020 1:34:32 PM EDT
I'd really like to build an AR-RPK.  24" would be preferable, and while I have 20" gov profile chrome lined barrels, what I can't seem to find are heavy profile chrome lined barrels at that length.
Link Posted: 12/1/2020 1:39:10 PM EDT
[#1]
Call Criterion. Phone: (262) 628-8749
Link Posted: 12/1/2020 1:41:19 PM EDT
[#2]
Criterion offers a 20" HBAR/CLd.
Link Posted: 12/1/2020 1:42:27 PM EDT
[#3]
rock river has 20 inch hbar
Link Posted: 12/1/2020 1:45:07 PM EDT
[#4]
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Quoted:
Call Criterion. Phone: (262) 628-8749
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Good call I didn't realize they did chrome barrels.
Link Posted: 12/1/2020 2:03:26 PM EDT
[#5]
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Quoted:
Criterion offers a 20" HBAR/CLd.
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i have one shoots 1/4 moa with 60 grain flat base.
Link Posted: 12/1/2020 2:07:15 PM EDT
[#6]
Both RR and Crit are indefinite or 3 month back order for a chrome lined 20" hbar
Link Posted: 12/1/2020 2:11:10 PM EDT
[#7]
Primary Arms and Spike's at least had an FN 20".
Link Posted: 12/1/2020 2:12:57 PM EDT
[#8]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Good call I didn't realize they did chrome barrels.
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I didn't know what voltage an RPK used.

Brownells sells Criterion and has coupon codes.  They are a bit limited on variety, but what they have is usually in stock.
Link Posted: 12/1/2020 2:24:39 PM EDT
[#9]
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Quoted:
Both RR and Crit are indefinite or 3 month back order for a chrome lined 20" hbar
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Current conditions as they are, likely the case everywhere.

Eta: LINK
Link Posted: 12/1/2020 2:41:32 PM EDT
[#10]
That Fulton is oos as well.  I found a double star 1-9 with an FSB. That twist doesn't bother me as it will likely only be fed 55 grain anyway.

Thanks for the help guys.
Link Posted: 12/1/2020 2:48:33 PM EDT
[#11]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
That Fulton is oos as well.  I found a double star 1-9 with an FSB. That twist doesn't bother me as it will likely only be fed 55 grain anyway.

Thanks for the help guys.
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Odd. Says "In stock", lets me add to cart.
Link Posted: 12/1/2020 3:03:05 PM EDT
[#12]
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Quoted:

Odd. Says "In stock", lets me add to cart.
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Oh, my bad.  I confused that link with another similar one and didn't follow through on the purchase link button.  But it's chrome moly, not chrome lined.  Normally I wouldn't care but this is a bullet hose I'm building
Link Posted: 12/1/2020 3:14:19 PM EDT
[#13]
Have you checked with Classic arms? They might have one.
Link Posted: 12/1/2020 3:15:23 PM EDT
[#14]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Oh, my bad.  I confused that link with another similar one and didn't follow through on the purchase link button.  But it's chrome moly, not chrome lined.  Normally I wouldn't care but this is a bullet hose I'm building
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Attachment Attached File


Advertised as CLd.

Eta: What's odd though is if you follow the original link over to Fulton's site the CLd description drops off.
Link Posted: 12/1/2020 4:53:39 PM EDT
[#15]
Discussion ForumsJump to Quoted PostQuote History
Quoted:

https://www.AR15.Com/media/mediaFiles/416992/Screenshot_20201201-131427_Samsung_Inter-1710032.JPG

Advertised as CLd.

Eta: What's odd though is if you follow the original link over to Fulton's site the CLd description drops off.
View Quote
Yeah on Criterions sight they say chrome, but on Fulton's it says chrome moly.
Link Posted: 12/1/2020 7:18:14 PM EDT
[#16]
Check out this truck axle that Green Mountain sells.

21", I don't think it tapers (that's "heavy" right?), chambered and has barrel extension.

http://www.gmriflebarrel.com/gm-b2-21-5-56mm-gunsmith-edition-blank-with-a-phosphate-extension/

"5.56 mm, 1:7 twist, 21" long, 41V50 steel, weighs 3.65 lbs., Gunsmith Edition chambered blank, chrome line bore and chamber, phosphate extension (with M4 feed ramps), button rifle, air gauged, and stress relieved."

Link Posted: 12/2/2020 3:50:13 PM EDT
[#17]
Does it have to be chrome-lined?  You did say it would be a bullet hose  There are 20" nitrided heavy barrels available.
Link Posted: 12/2/2020 8:37:52 PM EDT
[#18]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Check out this truck axle that Green Mountain sells.

21", I don't think it tapers (that's "heavy" right?), chambered and has barrel extension.

http://www.gmriflebarrel.com/gm-b2-21-5-56mm-gunsmith-edition-blank-with-a-phosphate-extension/

"5.56 mm, 1:7 twist, 21" long, 41V50 steel, weighs 3.65 lbs., Gunsmith Edition chambered blank, chrome line bore and chamber, phosphate extension (with M4 feed ramps), button rifle, air gauged, and stress relieved."

https://cdn2.bigcommerce.com/n-biq04i/9s3jnna5/products/333/images/391/GM_B4B2_PICS__49257.1410435730.1280.1280.JPG?c=2
View Quote
Uff da!
Link Posted: 12/2/2020 8:44:07 PM EDT
[#19]
Ok I'm liking that idea a lot right now because I could turn some fins in it
Link Posted: 12/2/2020 9:01:35 PM EDT
[#20]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Uff da!
View Quote


Hey, you are the one that wanted long, heavy and chrome lined.  Did that not hit all of the requirements? :)

Link Posted: 12/2/2020 10:32:25 PM EDT
[#21]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Ok I'm liking that idea a lot right now because I could turn some fins in it
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Green mountain offers some barrels with fins, not sure about 20” though
Link Posted: 12/2/2020 11:59:00 PM EDT
[#22]
Discussion ForumsJump to Quoted PostQuote History
Quoted:


Green mountain offers some barrels with fins, not sure about 20" though
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Just shorter from what I saw.
Link Posted: 12/4/2020 12:40:27 AM EDT
[#23]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
Check out this truck axle that Green Mountain sells.

21", I don't think it tapers (that's "heavy" right?), chambered and has barrel extension.

http://www.gmriflebarrel.com/gm-b2-21-5-56mm-gunsmith-edition-blank-with-a-phosphate-extension/

"5.56 mm, 1:7 twist, 21" long, 41V50 steel, weighs 3.65 lbs., Gunsmith Edition chambered blank, chrome line bore and chamber, phosphate extension (with M4 feed ramps), button rifle, air gauged, and stress relieved."

https://cdn2.bigcommerce.com/n-biq04i/9s3jnna5/products/333/images/391/GM_B4B2_PICS__49257.1410435730.1280.1280.JPG?c=2
View Quote


And...Out-of-Stock.
Link Posted: 12/5/2020 10:34:59 AM EDT
[#24]
Any specific reason you want chromed lined as opposed to nitrated?
I would think you could find a regular non chrome lined barrel in the contour you want, then have it nitrated easier than trying to find the perfect barrel that is also chrome lined.
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