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3/11/2015 9:56:16 AM EDT
hey guys im wondering if anyone knows of a company that makes melonited lowers? i just bought an upper from hardend arms and they melonited everything which is great but the coating makes the upper a darker black than most lowers. most i have seen are a mat black finish. i know i could have a lower coated but im hoping someone makes one that will match the color of my upper. also i dont want to mess with tolerances. if it comes already coated then i wont have to worry ...i hope lol
3/11/2015 10:01:32 AM EDT
[#1]
Not going to happen... lowers are aluminum and it won't hold up to the process.  It would have to be a steel lower which wouldn't be practical.  Its anodizing or paint for lowers.  I doubt they melonited the aluminum upper.  There are natural differences in the color of anodizing so sometimes it just comes out darker.  The last colt lower i bought was darker and much more of a matte finish than one I bought last year... it just happens.
3/11/2015 10:05:33 AM EDT
[#2]
I'm pretty sure only your barrel has the Melonite treatment. Ferretic nitrocarburizing is the melonite process, which is only for ferrous metals (containing iron).



Uppers and lowers are typically made from aluminum.
3/11/2015 10:32:07 AM EDT
[#3]
Quoted:
hey guys im wondering if anyone knows of a company that makes melonited lowers? i just bought an upper from hardend arms and they melonited everything which is great but the coating makes the upper a darker black than most lowers. most i have seen are a mat black finish. i know i could have a lower coated but im hoping someone makes one that will match the color of my upper. also i dont want to mess with tolerances. if it comes already coated then i wont have to worry ...i hope lol
View Quote


It's is NOT a coating. It is a metal treatment. As everyone else stated, it's not going to work on aluminum. They likely have a slightly different anodizing process or that batch just came out dark.
3/11/2015 12:02:04 PM EDT
[#4]
Quoted:
hey guys im wondering if anyone knows of a company that makes melonited lowers? i just bought an upper from hardend arms and they melonited everything which is great but the coating makes the upper a darker black than most lowers. most i have seen are a mat black finish. i know i could have a lower coated but im hoping someone makes one that will match the color of my upper. also i dont want to mess with tolerances. if it comes already coated then i wont have to worry ...i hope lol
View Quote


Your upper isn't melonited only the barrel maybe gas tube and gas block.   Anodizing comes in 50 shades of black.  If your that upset with it spit on your lower then rub in some clp
3/11/2015 12:05:00 PM EDT
[#5]
There is an older thread about coating receivers with DLC, which is almost as tough as melonite.

LINK
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