Green goo/powder in my "military style assault weapon"

ColKurtz

ColKurtz

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So I bought a SA20 about a year and a half ago, and during that period I've only had it out 3-4 times. It's my first and so far only AR-15 pattern rifle.

History aside, yesterday my father and I were at my local range enjoying said freedom rifle. Today I took the upper off the lower and noticed the bolt and the end of the gas tube had some green powder and some green goo on it. Looks like copper oxide.

I've only ever used federal m193 ammo in it and never seen this before. Should I be concerned?

It's the only direct impingement gas rifle I own and I'm not extremely experienced with its nuances yet.
 
Its residue from the burnt packing oil, I've seen it a lot with newer guns at work. Colt Canada loves to soak their guns in that un-holy oil.
 
First thing that you should do when you purchase your weapon is a proper cleaning with a gun cleaner solvent followed with a good gun oil. Have you done this?
 
megatron1337 said:
First thing that you should do when you purchase your weapon is a proper cleaning with a gun cleaner solvent followed with a good gun oil. Have you done this?
Click to expand...

Yes but evidently I didn't do a good enough job. What I find strange is that i haven't seen it until NOW, as the few times I've shot the firearm I've stripped and cleaned it within a day or two.
 
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megatron1337 said:
First thing that you should do when you purchase your weapon is a proper cleaning with a gun cleaner solvent followed with a good gun oil. Have you done this?
Click to expand...

What do you use to clean the oil out of the inside of the gas tube?

Also you do not need to clean the preservation oil off with solvent, just wipe the excess off.
 
in my case considering the only place I saw the green dust I'm guessing there was some of that oil left under the gas rings...
 
It's Colt Canada's special, unique stardust that they put in their weapons. How do you think they can justify $1,850 uppers?
 
Dsiwy said:
What do you use to clean the oil out of the inside of the gas tube?

Also you do not need to clean the preservation oil off with solvent, just wipe the excess off.
Click to expand...

https://www.amazon.ca/gp/product/B002V0ZY2Q/ref=ox_sc_act_title_2?smid=AH75WBOB34LK1&psc=1
https://www.amazon.ca/Tipton-549864...g_2?ie=UTF8&psc=1&refRID=5X4FZWF6G0QSZ8VWHRFW

do you think these would be helpful? spruce some ballistol or G96,use the picks if the substance is hard and then finish off the cleaning with the cotton tips,or maybe I misunderstood what your issue is :)
 
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GunsNotPuns said:
Why on Earth would you need to clean the inside of the gas tube? It is for all intents and purposes a self-cleaning system. Sticking pipe cleaners or swabs in your gas tube is an invitation to trouble.
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It's supposed to be self cleaning isn't it?
but then again why are these sold?
http://www.brownells.com/gun-cleaning-chemicals/brushes-amp-bore-snakes/specialty-cleaning-brushes/ar-15-gas-tube-cleaners-prod1544.aspx
 
-[Crosshair]- said:
It's Colt Canada's special, unique stardust that they put in their weapons. How do you think they can justify $1,850 uppers?
Click to expand...

You forgot to mention that it's the exact same dust they put on their SAS issue guns when they sell them to the SAS. I'm willing to bet SAS requested it specifically for SAS purposes.


Because SAS.
 
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