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Posted: 5/19/2020 11:48:53 AM EDT
[#1]
Are you using a drop-in trigger or standard trigger?
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Posted: 5/19/2020 12:19:02 PM EDT
[#2]
So far, only standard.
Really just getting into building and customizing now. I had one of those "I really should have gotten into this years ago" moments back in January. I'll get to the higher end stuff once I have a little more experience under my belt. |
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Posted: 5/19/2020 12:32:03 PM EDT
[#3]
I obsessed a bit over this, then decided that I would just leave it.
No good reason why not. You hardly ever see it, and when you do, it's nicely finished. The natural oxide layer is pretty good protection. If you are going to worry about it, spend less money on unfinished receivers, then send the completed thing off for anodizing when you are finished. |
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Posted: 5/19/2020 1:09:16 PM EDT
[#4]
I wouldn't worry about it. The amount of wear the inside of a receiver gets is pretty small. Tens of thousands of people are running lowers with unfinished insides and I've never heard of it being an issue. If you don't like the cosmetics then the alumablack is fine.
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Posted: 5/19/2020 2:19:39 PM EDT
[#5]
All that makes sense, thank you. I figured I was overthinking it but wanted to confirm.
I think I'm going to touch up around the drilled holes with the bluing and call it good. |
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Posted: 5/19/2020 2:36:35 PM EDT
[#6]
Quote HistoryOriginally Posted By mbg0001: All that makes sense, thank you. I figured I was overthinking it but wanted to confirm. I think I'm going to touch up around the drilled holes with the bluing and call it good. You can’t blue aluminum, pick up a bottle of Flat Black model paint and a tiny foam brush. |
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Posted: 5/19/2020 2:40:21 PM EDT
[#7]
I use anodized “80%” Lowers for my builds, once you assemble them you can’t see the machined aluminum....
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Posted: 5/19/2020 2:41:28 PM EDT
[#8]
Quote HistoryOriginally Posted By PhilipPeake: I obsessed a bit over this, then decided that I would just leave it. No good reason why not. You hardly ever see it, and when you do, it's nicely finished. The natural oxide layer is pretty good protection. If you are going to worry about it, spend less money on unfinished receivers, then send the completed thing off for anodizing when you are finished. As for OP, don't worry about it. If feel you must absolutely do something, pick up some AlumaHyde from Brownells and paint over it. That's what I do and it has worked out great. |
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Posted: 5/19/2020 2:44:13 PM EDT
[#9]
Quote HistoryOriginally Posted By PursuitSS: You can’t blue aluminum, pick up a bottle of Flat Black model paint and a tiny foam brush. Quote HistoryOriginally Posted By PursuitSS: Originally Posted By mbg0001: All that makes sense, thank you. I figured I was overthinking it but wanted to confirm. I think I'm going to touch up around the drilled holes with the bluing and call it good. You can’t blue aluminum, pick up a bottle of Flat Black model paint and a tiny foam brush. Was typing off my phone. I meant this stuff. 
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Posted: 5/19/2020 3:52:09 PM EDT
[#10]
Quote HistoryQuoted: Most places that do anodizing won't take it unless it has been serialized, because they are FFL's and are required to log the gun in/out when they receive it and are done with it. 
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Posted: 5/19/2020 3:53:41 PM EDT
[#11]
Quote HistoryQuoted: Was typing off my phone. I meant this stuff. https://cdn3.volusion.com/sycrv.ebdas/v/vspfiles/photos/BC15125-2.jpg (It also blackens steel.) |
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Posted: 5/19/2020 4:00:36 PM EDT
[#12]
It's cosmetic, but you can do alumahyde/cerakote/gunkote/durakote/etc to cover...
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Posted: 5/19/2020 4:21:44 PM EDT
[#13]
If you start w/ raw aluminum I've seen some cool youtubes on "how to anodize" at home for things like knife scales, etc. After that it is just a matter of size scale...
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Posted: 5/19/2020 6:34:25 PM EDT
[#14]
Quote HistoryOriginally Posted By eye-gor: If you start w/ raw aluminum I've seen some cool youtubes on "how to anodize" at home for things like knife scales, etc. After that it is just a matter of size scale... I'll confess to have gone down that YouTube rabbit hole. For better or worse, I don't have the shop space for that! |
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Posted: 5/19/2020 7:01:32 PM EDT
[#15]
Quote HistoryOriginally Posted By KitBuilder: They must just not want the work, since it’s completely fine to log a gun in/out of A&D with no serial number. Yeah, that's what I've understood too. https://www.atf.gov/firearms/qa/atf-form-4473-required-when-gunsmith-returns-repaired-firearm |
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Posted: 5/19/2020 7:09:08 PM EDT
[#16]
Quote HistoryQuoted: If you're using that stuff, apply it immediately after machining the aluminum. Then it'll do a good job. (It also blackens steel.) Or just degrease and heat up the metal, and apply. 2-3 coats for a really dark appearance.... If you've already machined the piece b4 you decided the raw look was annoying. |
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Posted: 5/20/2020 6:22:11 AM EDT
[#17]
Quote HistoryOriginally Posted By eye-gor: If you start w/ raw aluminum I've seen some cool youtubes on "how to anodize" at home for things like knife scales, etc. After that it is just a matter of size scale... Most home anodizing jobs are not milspec type 3 hardcoat, they are a lower grade for cosmetic purposes. That being said..if a surface treatment must be relied on for structural integrity than that is a sign of poor material selection imo. |
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Posted: 5/20/2020 11:37:11 AM EDT
[#18]
Quote HistoryOriginally Posted By Veprz: Most home anodizing jobs are not milspec type 3 hardcoat, they are a lower grade for cosmetic purposes. That being said..if a surface treatment must be relied on for structural integrity than that is a sign of poor material selection imo. You know y'all are sending me down the metallurgy rabbit hole, don't you? Not that I'm complaining. My wallet might, but I'm not. 
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Posted: 5/20/2020 6:25:27 PM EDT
[#19]
We should sticky this thread, we do this often.
Just leave it alone. No harm will come to your 80% if you leave it as is after milling it. |
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Posted: 6/28/2020 3:02:34 PM EDT
[#20]
Quote HistoryQuoted: We should sticky this thread, we do this often. Just leave it alone. No harm will come to your 80% if you leave it as is after milling it. Thank you. I have anodized 80% lowers, so I'm mostly concerned if I should finish the pocket after machining, or just leave it raw inside. Now if my 5D jig will finally come. 
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