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Posted: 5/19/2022 4:35:03 PM EDT
[#1]
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Posted: 5/19/2022 4:58:35 PM EDT
[#2]
Quoted: I came across someone that had a few of these that wanted to sell them. They are not assembled and in sealed bags. Can I buy them and assemble them or is it now a no-no with the powers that be? Thank you for your insight. Federally osprey21 is correct, but a number of states, including your indicated New York, have enacted stricter laws and forbid or otherwise restrict home built firearms under "Ghost Gun" laws. |
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Posted: 5/19/2022 5:11:43 PM EDT
[#3]
Thanks! I have researched these and someone said superglue to hold together? Do you know anything about this method? I have only seen welded which of course would be best. Also, these are the original kits so he say there is a part upgrade missing? Looks to be the little rectangle part with the single hole.
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Posted: 5/19/2022 5:22:26 PM EDT
[#4]
Quote HistoryQuoted: Federally osprey21 is correct, but a number of states, including your indicated New York, have enacted stricter laws and forbid or otherwise restrict home built firearms under "Ghost Gun" laws. Good catch! Looks like I missed the deadline by 21-22 days =( By NY law I had until April 25, 2022 to have any non serialized firearm serialized. Guess I’ll be moving 20mins south to PA in the near future, lol… |
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Posted: 5/19/2022 7:25:25 PM EDT
[#5]
Wow, never heard of these.
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Posted: 5/19/2022 8:17:31 PM EDT
[#6]
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Posted: 5/19/2022 9:10:05 PM EDT
[#7]
Quote HistoryQuoted: Thanks! I have researched these and someone said superglue to hold together? Do you know anything about this method? I have only seen welded which of course would be best. Also, these are the original kits so he say there is a part upgrade missing? Looks to be the little rectangle part with the single hole. I tried superglue. It did not work. There is a part upgrade - it gives the safety detent channel more meat to fit between. You can throw a dab of weld there, or better yet weld in a small piece of steel before you drill the safety detent channel from the bottom. An ARFCOMer brazed a really nice one, so welding is not the only way. |
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Posted: 5/20/2022 12:35:59 AM EDT
[#8]
Definitely remember these and wish I had grabbed one if for no other reason than being made of a material that doesn't rely on a surface treatment measured in thousandths of an inch for structural integrity (specifically the fcg pin holes).
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Posted: 5/20/2022 7:32:18 AM EDT
[#9]
Quote HistoryQuoted: Definitely remember these and wish I had grabbed one if for no other reason than being made of a material that doesn't rely on a surface treatment measured in thousandths of an inch for structural integrity (specifically the fcg pin holes). You can always install steel bushings on your lowers. |
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Posted: 5/20/2022 8:10:16 AM EDT
[#10]
I still have two in plastic bags. Not really sure why I even bought them as I don't have a welding setup.
They're surprisingly heavy. |
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Posted: 5/20/2022 10:37:10 AM EDT
[#11]
Quote HistoryQuoted: They're surprisingly heavy. This is what has always deterred me personally. |
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Posted: 5/20/2022 11:28:04 AM EDT
[#12]
I'm just here for the "finished" build pics
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Posted: 5/20/2022 1:51:37 PM EDT
[#13]
Besides steel, would a similar design made from aluminum work? I' m assuming steel was the choice due to it being welded via gas or stick if Tig or Mig welding was not an option.
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Posted: 5/20/2022 2:01:58 PM EDT
[#14]
Quote HistoryQuoted: Besides steel, would a similar design made from aluminum work? I' m assuming steel was the choice due to it being welded via gas or stick if Tig or Mig welding was not an option. There is a set of plans out there for making a bolt together lower out of multiple pieces of machined aluminum. Like 9 pieces in total that you would have to transfer from drawing to CAD/CAM for using a CNC mill. 4 of the pieces would require figuring out 4 sided milling strategies. Toughest piece would be the receiver extension and threading. Could likely just do the receiver extension out of aluminum then figure out all the other pieces to be 3D printed. |
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Posted: 5/20/2022 11:04:50 PM EDT
[#15]
Quote HistoryQuoted: Thanks! I have researched these and someone said superglue to hold together? Do you know anything about this method? I have only seen welded which of course would be best. Also, these are the original kits so he say there is a part upgrade missing? Looks to be the little rectangle part with the single hole. Safety? The one I helped with @sublimeshooter welded the safety in the fire position. He may have changed that later. Archived Flat Spot Builds  Attached File Attached File |
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Posted: 5/23/2022 9:03:20 PM EDT
[#16]
Here's one I did a few years ago. Silver-Bronze brazed the parts together with an oxy-ace torch. Got more pics if anyone is interested.
    In-process:    
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Posted: 5/23/2022 9:05:17 PM EDT
[#17]
Quote HistoryQuoted: Here's one I did a few years ago. Nickle-bronze brazed the parts together. got more pics if anyone is interested. https://www.ar15.com/media/mediaFiles/306/IMG-7447-199738.JPG In-process: https://www.ar15.com/media/mediaFiles/306/IMG-7410-200862.JPG I've always thought yours turned out the best of everyone's. |
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Posted: 5/23/2022 9:16:46 PM EDT
[#18]
Thanks!!
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Posted: 5/23/2022 9:30:54 PM EDT
[#19]
Here's some more pics of my Flat Spot build:
  
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Posted: 5/23/2022 10:08:32 PM EDT
[#20]
Quote HistoryQuoted: Here's some more pics of my Flat Spot build: https://www.ar15.com/media/mediaFiles/306/IMG_7443_JPG-2394893.jpg https://www.ar15.com/media/mediaFiles/306/IMG_7402_JPG-2394885.jpg https://www.ar15.com/media/mediaFiles/306/IMG-7386-200861.JPGhttps://www.ar15.com/media/mediaFiles/306/IMG_7397_JPG-2394883.jpg Impressive, excellent work! |
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Posted: 5/23/2022 10:09:47 PM EDT
[#21]
Quote HistoryQuoted: You can always install steel bushings on your lowers. I have thought about that. I believe there was a company selling kits to do it awhile back also. |
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Posted: 5/23/2022 10:10:35 PM EDT
[#22]
Quote HistoryQuoted: Safety? The one I helped with @sublimeshooter welded the safety in the fire position. He may have changed that later. Archived Flat Spot Builds https://www.ar15.com/media/mediaFiles/89127/5celAnR_resized_jpg-1495660_jpeg-2391291.JPG https://www.ar15.com/media/mediaFiles/89127/cMW0fWv_resized_jpg-1495663_jpeg-2391292.JPG Thats dope! |
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Posted: 5/25/2022 1:54:40 PM EDT
[#23]
Quote HistoryQuoted: This is what has always deterred me personally. Just a few ounces heavier than an aluminum lower. Once the gun is fully assembled, you will hardly notice the weight increase. |
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Posted: 5/25/2022 2:36:13 PM EDT
[#24]
Quote HistoryQuoted: Just a few ounces heavier than an aluminum lower. Once the gun is fully assembled, you will hardly notice the weight increase. Unless you weld a 1" steel tube on for the receiver extension. |
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Posted: 5/26/2022 2:40:46 PM EDT
[#25]
Quote HistoryQuoted: I've always thought yours turned out the best of everyone's. Quote HistoryQuoted: Quoted: Here's one I did a few years ago. Nickle-bronze brazed the parts together. got more pics if anyone is interested. https://www.ar15.com/media/mediaFiles/306/IMG-7447-199738.JPG In-process: https://www.ar15.com/media/mediaFiles/306/IMG-7410-200862.JPG I've always thought yours turned out the best of everyone's. @Russ4777 That is absolutely beautiful work!!! I never bought one of those kits because I know I don't have the welding skills to do that kind justice to the piece. |
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Posted: 5/30/2022 10:17:49 PM EDT
[#26]
Actually, brazing is a really easy skill to acquire. Clamping is essential. If too much brazing rod is applied, you just grind off the excess until it looks pretty.
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Posted: 7/20/2022 9:26:32 PM EDT
[#27]
That was awhile ago! LOL, almost as long as it took me to reply.
The safety was made functional. Initially I wasn’t sure if I wanted to bother drilling for the detent pin, but later did. |
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Posted: 7/20/2022 9:46:30 PM EDT
[#28]
Quote HistoryQuoted: Thanks! I have researched these and someone said superglue to hold together? Do you know anything about this method? I have only seen welded which of course would be best. Also, these are the original kits so he say there is a part upgrade missing? Looks to be the little rectangle part with the single hole. No, I tried superglue & it didn't work. You can throw a bead of weld in there just below the safety hole, that will give you more strength in the safety detent channel. ETA: Lol, I duped myself. |
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Posted: 7/20/2022 11:06:49 PM EDT
[#29]
Quote HistoryQuoted: Definitely remember these and wish I had grabbed one if for no other reason than being made of a material that doesn't rely on a surface treatment measured in thousandths of an inch for structural integrity (specifically the fcg pin holes). Supposedly this worked…  |
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Posted: 7/20/2022 11:34:28 PM EDT
[#30]
Quote HistoryQuote HistoryQuoted: Quoted: Definitely remember these and wish I had grabbed one if for no other reason than being made of a material that doesn't rely on a surface treatment measured in thousandths of an inch for structural integrity (specifically the fcg pin holes). Supposedly this worked… https://i.imgur.com/BqBKioA.jpg It did, for 3 shots. |
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Posted: 7/21/2022 12:40:30 AM EDT
[#31]
I bought a kit and tried JB weld. It went together okay, but when I was test firing it, it fell apart. Then I tried Devcon epoxy, and while it worked for a while on magazine number three it also fell apart. Unless you can braze or weld, it is not worth it in the long term. An interesting project though, I did try using mapgas and a handheld torch but could not get the parts hot enough to hold the brazing.
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Posted: 7/29/2022 7:26:04 PM EDT
[#32]
Wanna sell one of them?
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Posted: 7/29/2022 7:27:14 PM EDT
[#33]
Quote HistoryQuoted: I still have two in plastic bags. Not really sure why I even bought them as I don't have a welding setup. They're surprisingly heavy. wanna sell one?? |
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Posted: 7/30/2022 11:18:55 AM EDT
[#34]
I wish I had bought one. Would love to trace a set and have a template.
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Posted: 7/30/2022 1:48:44 PM EDT
[#35]
Quote HistoryQuoted: wanna sell one?? Quote HistoryQuoted: Quoted: I still have two in plastic bags. Not really sure why I even bought them as I don't have a welding setup. They're surprisingly heavy. wanna sell one?? What did they cost new? |
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Posted: 7/31/2022 5:34:07 PM EDT
[#36]
Quote HistoryQuoted: What did they cost new? $26.00 as I recall. |
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Posted: 7/31/2022 5:49:45 PM EDT
[#37]
There is also a set of plans out there for a flat plate bolt together aluminum AR lower. Need to make 9 pieces from the plans.
Would probably be a good project for learning Fusion 360 combined with other facets of CAD/CAM and 3D printing. |
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Posted: 7/31/2022 6:28:08 PM EDT
[#38]
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Posted: 7/31/2022 7:28:21 PM EDT
[#39]
Quote HistoryQuoted: $26.00 as I recall. The price kept going up. It started out the cheapest way to build an AR lower, ended up close to an Anderson. |
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Posted: 8/1/2022 4:15:38 PM EDT
[#40]
deleted
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Posted: 8/1/2022 4:16:38 PM EDT
[#41]
Quote HistoryQuoted: EE LINK A little steep when you can currently buy forged 80%'ers from Gorilla Machining for $39.95. |
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Posted: 8/1/2022 4:19:48 PM EDT
[#42]
Quote HistoryQuoted: A little steep when you can currently buy forged 80%'ers from Gorilla Machining for $39.95. Quote HistoryQuoted: Quoted: EE LINK A little steep when you can currently buy forged 80%'ers from Gorilla Machining for $39.95. That's no lie. |
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Posted: 8/1/2022 5:51:39 PM EDT
[#43]
Quote HistoryQuoted: A little steep when you can currently buy forged 80%'ers from Gorilla Machining for $39.95. Not too bad when you consider the tooling cost to machine a steel lower from scratch. |
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Posted: 8/16/2022 4:38:53 PM EDT
[#44]
Quote HistoryQuoted: I still have two in plastic bags. Not really sure why I even bought them as I don't have a welding setup. They're surprisingly heavy. That extra weight is a feature When you are shooting some bigbore rounds I’m setting up a 458 SOCOM shooting 300gr pills I have heard that the 458 can crack some Aluminum lowers Build it on an upper with the pins in with your tightest magazine in it and spring clamps Weld the buffer tube tower together and treaded before welding it on the lower and have a buffer tube on it and a upper on the lower with a 1” tube in the upper going into the buffer tube So the buffer tube is perfectly straight with the upper This will keep the buffer tube and upper on the same axis The bolt carrier will move with no problems if you do it this way Add some steel under the safety for a spring detention to be drilled and added Clean and round off all the parts that are on the outside to not be sharp 90 degrees Grind or mill a channel in the inside of the magazine well for the bump on the magazine before you start welding |
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Posted: 8/16/2022 4:53:47 PM EDT
[#45]
Quote HistoryQuoted: That extra weight is a feature When you are shooting some bigbore rounds I’m setting up a 458 SOCOM shooting 300gr pills I have heard that the 458 can crack some Aluminum lowers You won't crack this one. It would probably handle 50 BMG!! |
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