Glock 19 threaded barrel
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Old 07-28-2013, 06:01 PM   #1
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Default Glock 19 threaded barrel

I've had a threaded glock 19 factory barrel for a year now. I've noticed copper looking streaks inside the barrel that go with the grooves...is this rust in my barrel or what? Sorry for the crappy pics. Best I could do. I've used mpro 7 copper remover and nothing. Thinking about contacting lock possibly.

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Old 07-28-2013, 06:20 PM   #2
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From the pics it Looks like rust.
I'm not experienced with mpro7. I've heard good things though.
What kind of mop or brush do you use for cleaning? Have you tried any other solvents or oils?
Are you sure it is a factory barrel?

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Old 07-28-2013, 07:04 PM   #3
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Yes it's a factory glock stamped barrel. When I rub a qtip over the spots it doesn't show any hang up or seem rough. It has a very low round count, maybe 300 total. I most often use a bore snake post range time. Clean with froglube. I wish I could get a clearer picture. Bcz it's very goldish(like copper).

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Old 07-28-2013, 07:06 PM   #4
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Purchased from diamond back police supply on June 19, 2012.

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Old 07-28-2013, 08:36 PM   #5
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If it doesn't catch on a q-tip and it isn't rust, I wouldn't worry too much.
You could try a different type of brush and a different solvent but it likely isn't worth the trouble.
It's a glock. Just keep shooting.

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Old 07-29-2013, 12:00 AM   #6
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Curiosity mostly. I have two other glock barrels and neither show this discoloration with the same ammo. Ill keep my eye on it and get into contact with cs.

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Old 07-29-2013, 01:54 AM   #7
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Quote:
Originally Posted by brettc View Post
Curiosity mostly. I have two other glock barrels and neither show this discoloration with the same ammo. Ill keep my eye on it and get into contact with cs.
I'd be interested in knowing their response.
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Old 07-29-2013, 05:16 AM   #8
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I'll be sure to post their response here

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Old 08-07-2013, 02:40 PM   #9
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I checked both my G19 and G21 factory threaded barrels and have similar copper/bronze streaks. Nothing to really worry about imo. They're most likely just color stains from the bullets. Typical barrel rifling has lands and grooves (or hills and valleys). The copper streaks were only on the lands (hills) in my barrels. So it kinda makes sense.

Any response yet from Glock?

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Old 08-08-2013, 02:06 PM   #10
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Yes heard back from glock. They said this is typical in their threaded barrels. The armored suggested soaking the barrel in hoppes #9 copper solvent over night. I'm just thankful it's NOT rust. Thanks for checking your barrels, makes me feel better.

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