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Page AR-15 » AR-15 / M-16 Retro Forum
AR Sponsor: bravocompany
Posted: 8/23/2015 3:14:46 PM EDT
This is the one I was talking about earlier...  what gives on the finish?





USGI in the back...















Chrome chipped on corners?










Is it possible this was bead blasted?


 
Link Posted: 8/23/2015 3:38:20 PM EDT
[#1]
I think that's dried out storage preservative. Oil or grease cosmoline. -W

Yes, you can chip the chrome if you drop them or let them bang around in a tool box, or shipping with other metal parts.
Link Posted: 8/23/2015 3:45:18 PM EDT
[#2]
I have buffed a small section with a dremel and buffing wheel thinking the same thing...it got a little bit brighter but certainly nothing like the top one.
Link Posted: 8/23/2015 4:54:51 PM EDT
[#3]
try something like carb cleaner,acetone , or lacquer thinner. just wipe, see what happens.
Link Posted: 8/23/2015 5:07:35 PM EDT
[#4]

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Quoted:


try something like carb cleaner,acetone , or lacquer thinner. just wipe, see what happens.
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Been there..done that...no effect

 
Link Posted: 8/23/2015 6:45:08 PM EDT
[#5]
Flitz might do it, or some other automotive chrome polish. Also it looks like you're a handloader, maybe a few minutes in the brass tumbler might fix it up.
Link Posted: 8/23/2015 7:53:53 PM EDT
[#6]
are you sure its chrome? could be a really messed up parkerized carrier
Link Posted: 8/23/2015 8:07:39 PM EDT
[#7]

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Quoted:


are you sure its chrome? could be a really messed up parkerized carrier
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You can see the chipped chrome at the edges..also not pictured ..where the hammer rides its also chipped at the firing pin.

 
Link Posted: 8/23/2015 10:56:33 PM EDT
[#8]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
You can see the chipped chrome at the edges..also not pictured ..where the hammer rides its also chipped at the firing pin.  
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Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:
are you sure its chrome? could be a really messed up parkerized carrier
You can see the chipped chrome at the edges..also not pictured ..where the hammer rides its also chipped at the firing pin.  


i don't think the chrome carriers are like decorative chrome.  it won't chip.  it looks like a parked 604 carrier to me.
Link Posted: 8/24/2015 9:44:58 AM EDT
[#9]
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Quoted:


i don't think the chrome carriers are like decorative chrome.  it won't chip.  it looks like a parked 604 carrier to me.
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Quoted:
Quoted:
Quoted:
are you sure its chrome? could be a really messed up parkerized carrier
You can see the chipped chrome at the edges..also not pictured ..where the hammer rides its also chipped at the firing pin.  


i don't think the chrome carriers are like decorative chrome.  it won't chip.  it looks like a parked 604 carrier to me.


+1   It looks more like park than chrome to me too.
Link Posted: 8/24/2015 9:53:01 AM EDT
[#10]
Maybe it's nickel or tin coated and not chrome?  It kind of has that rainbow corrosion thing going on...  That or someone used some sort of natural (animal based) grease on it and got it really hot...
Link Posted: 8/24/2015 10:24:38 AM EDT
[#11]
It's usgi...I don't think it's parked...I'll put it next to some parked 604 carriers when I get home.
Link Posted: 8/24/2015 3:34:57 PM EDT
[#12]
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Quoted:
It's usgi...I don't think it's parked...I'll put it next to some parked 604 carriers when I get home.
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earlier parked parts are light grey or even greenish grey compared to modern parkerizing.
Link Posted: 8/24/2015 5:14:45 PM EDT
[#13]
Here it is in the middle:








Left side..note chip in the finish


















On left..parked in middle...note chipped finish and in pic in first post.





 






Any chance it went through a "rebuild" and they blasted it and parked it?  And all they did was dull the finish?
Link Posted: 8/26/2015 6:50:29 AM EDT
[#14]
That is a parked carrier with 90+ % of the finish work off or dipped off in a solution.
Link Posted: 8/26/2015 8:43:48 AM EDT
[#15]
Parkerizing doesn't chip off like that though. That looks like some type of coating.
Link Posted: 8/26/2015 9:19:48 AM EDT
[#16]

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Quoted:


That is a parked carrier with 90+ % of the finish work off or dipped off in a solution.
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New test using cold blue....

 



middle parked carrier took the blue....left carrier in question does NOT take the blue.  so it's chrome...I will see if I can find some flitz or chrome polish and see if I can get it shiny again.
Link Posted: 8/26/2015 8:54:46 PM EDT
[#17]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
New test using cold blue....  

middle parked carrier took the blue....left carrier in question does NOT take the blue.  so it's chrome...I will see if I can find some flitz or chrome polish and see if I can get it shiny again.
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Discussion ForumsJump to Quoted PostQuote History
Quoted:
Quoted:
That is a parked carrier with 90+ % of the finish work off or dipped off in a solution.
New test using cold blue....  

middle parked carrier took the blue....left carrier in question does NOT take the blue.  so it's chrome...I will see if I can find some flitz or chrome polish and see if I can get it shiny again.



Use a dremel tool with a buffer wheel on slow speed and if it is chrome, it will polish up like an old penny.
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