SBR barrel question


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cottonmouth
June 6, 2012, 10:15 PM
I have a 7" AR and it has a heavy (way too heavy if you as me) barrel. I was thinking about having it turned down to a standard type barrel to save on weight, I'm guessing it wouldn't hurt anything.

J.B.

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Swing
June 7, 2012, 01:06 AM
Huh?

TurtlePhish
June 7, 2012, 07:44 AM
Just make sure the gas block location stays how it is or gets turned to .750 and there should be no problems at all.

tepin
June 7, 2012, 07:53 AM
Would having it "turned down" be cheaper than buying a new 7" lighter barrel?

fatcat4620
June 7, 2012, 08:12 AM
You could have it turned down but a new barrel would cost about the same. I doubt you would save more than 6oz either way.

rjrivero
June 7, 2012, 08:53 AM
Adco charges $65 to recontour behind the FSB or in front of the FSB.

To do the whole barrel is $130.

A White Oak Armament 7.5" barrel costs $260.

cottonmouth
June 7, 2012, 07:48 PM
So far the only 7" barrels I have seen were heavy barrels, just looking to shave off some weight. 1/2 pound sounds like a good bit. A friend of mine has a lathe and I am thinking about letting him turn it down then coating the bare metal.

J.B.

ScottyPotty
June 7, 2012, 10:05 PM
I turned down my mid length barrel, so I say go for it.

http://img406.imageshack.us/img406/2386/armalitebarrelmod.jpg

cottonmouth
June 7, 2012, 10:57 PM
Scotty, what did you do for a finish?

J.B.

ScottyPotty
June 7, 2012, 11:08 PM
I just cold blued it. I just have plastic HG and everyone in a while put a light coat of oil on it. Its been a few years and no problems.

cottonmouth
June 11, 2012, 07:13 PM
Yesterday we chucked the barrel into the lathe and turned it down. I didn't think to weigh it but I can tell it helped. Threw on a few coats of cold blue and opened up the gas port a little (very little) and put it back together. First test was done on an M16-A1 lower and it dumped a couple magazines with ease. Then I put it on it's registered lower an ran a magazine through it with no problems. Before I opened the gas port it wouldn't run full auto. I really like this little rifle even though it's loud as hell and it tries to set the world on fire from it's muzzle flash!

J.B.

cottonmouth
June 12, 2012, 08:01 PM
http://i19.photobucket.com/albums/b162/cottonmouth_/farball.png

J.B.

TurtlePhish
June 12, 2012, 09:27 PM
Jeez. How loud is it?

rjrivero
June 12, 2012, 10:34 PM
Jeez. How loud is it?
Louder than .44 Mag. (Based on my 7.5" AR vs my 6" Colt Anaconda).

cottonmouth
June 12, 2012, 10:42 PM
You know how a hot .357 magnum pierces your ears without hearing protection? Sortta like that!

J.B.

TurtlePhish
June 12, 2012, 10:54 PM
You know how a hot .357 magnum pierces your ears without hearing protection? Sortta like that!


....ow. Nice fireball, though!

cactus02
June 17, 2012, 11:22 AM
Well if you can't shoot them you can toast em.

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