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Bear Creek Arsenal Barrels

Started by Burnett, July 22, 2026, 07:56:02 PM

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Burnett

July 22, 2026, 07:56:02 PM
Does anyone know if BCA uses lined or unlined barrels?
I know, you're thinking, "Greg, instead of asking an internet forum, as Bear Creek".
I did. Apparently they don't know, and by that I mean they apparently don't know what a lined barrel is.
First I called and asked the young lady that answered. She responded with "a lined barrel?" and told me just a second. And transferred me to tech where I was on hold for about 3 minutes before getting cut off.
So I submitted a question to tech from their website. The reply I received was "The material is 4150 Chrome Moly Vanadium". Yeah, I know that, it clearly says that on the product page. That doesn't tell me if it is lined.
Anyway...
I actually want an unlined barrel for this project.
Thanks to all.

Charles McKinley

#1
September 16, 2026, 09:23:27 PM
No chrome lining, test it right away.  My first 22LR upper shot an 8" pattern at 25m. The replacement solid 2 MOA in prone.  3 300BLK uppers between DeckApe and myself and they shoot well.
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Burnett

#2
September 17, 2026, 07:18:31 PM
This is actually for a non-firing project so precision is not at all a concern.
But good to know that I wouldn't be able to hit a thing if it could. Or something like that.

Mike AKA Bandaid

#3
September 17, 2026, 09:45:56 PM
As I understand it, if it is a Chrome Moly Vandium, then it is not lined. If the barrel is lined, it would not be any chrome alloy.

As I'm not expert, your mileage may vary.
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DEH

#4
September 17, 2026, 10:29:06 PM Last Edit: September 17, 2026, 10:39:41 PM by DEH
If it doesn't say chrome lined or nitrided, the chances that it is is near zero.  Chrome lined or nitrided is a selling point and they can charge more money for it.

Chrome moly(bdenum) is a normal part of 4150 steel.  The vanadium is added to it to modify the grain and crystal structure to make it more durable and a few other things.

In the case of rifle barrels 4150 cmv steel can be bare, chrome lined, or nitrided.

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Burnett

#5
September 18, 2026, 12:23:33 AM
Suppose it could be drilled out to .25 inches? Per discussions with others, if a barrel is chrome lined or nitrided, it'd be dern near impossible to drill out.
For this project, I wanna drill an AR barrel out to a quarter inch.
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