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Posted: 11/1/2008 12:20:25 PM EDT
I was wondering if anyone had any links to 80% ar15 lower receivers? I was able to find DSA lower forged receivers that are 0% but cannot seem to find anything that is 80%. I remember seeing them last year at the tannery shop. I have access to a drill press but not a mill. This is why I am looking for 80%. Any help would be much appreciated.
Link Posted: 11/1/2008 1:10:07 PM EDT
try here or look in the EE. There is a member selling some in the AR Accessories & Misc section
Link Posted: 11/1/2008 2:02:53 PM EDT
[Last Edit: 11/1/2008 2:10:06 PM EDT by vermont2nd]
crackedcornish, I can't get that link to work.

ETA: my apologies, nevermind, OPERATOR ERROR
Link Posted: 11/2/2008 11:10:10 AM EDT
I got mine at https://www.vbd.com/noc/shop/products_detail.asp?CategoryID=29&ProductID=272.

Here's the finished product. It works perfectly and totally stealth except for a hidden serial number.



Link Posted: 11/2/2008 11:37:22 AM EDT
Originally Posted By Russ4777:
I got mine at <a href="https://www.vbd.com/noc/shop/products_detail.asp?CategoryID=29&ProductID=272" target="_blank">https://www.vbd.com/noc/shop/products_detail.asp?CategoryID=29&ProductID=272[/url].

Here's the finished product. It works perfectly and totally stealth except for a hidden serial number.

http://www.hunt101.com/data/500/medium/LW_Rt_Side_No_Scope.jpg

[url]http://www.hunt101.com/data/500/medium/LW_Lt_Side_No_Scope.jpg</a>


nice work on the lower.

what finish is on it, anodized or painted?

what size cutter did you use to spot the rear take down pin hole and front trigger guard pin with?
Link Posted: 11/2/2008 2:02:15 PM EDT
Originally Posted By Russ4777:
I got mine at <a href="https://www.vbd.com/noc/shop/products_detail.asp?CategoryID=29&ProductID=272" target="_blank">https://www.vbd.com/noc/shop/products_detail.asp?CategoryID=29&ProductID=272[/url].

Here's the finished product. It works perfectly and totally stealth except for a hidden serial number.

http://www.hunt101.com/data/500/medium/LW_Rt_Side_No_Scope.jpg

[url]http://www.hunt101.com/data/500/medium/LW_Lt_Side_No_Scope.jpg</a>


Did it come with a SN or did you do it yourself? And if you don't mind me asking...Why?

Link Posted: 11/2/2008 3:08:45 PM EDT
I saw a post on the Roderus site that claimed ATFucks were changing their rules to classify AR lowers that have the trigger well machined as firearms. Be careful... the nazis use this sort of ruling to shoot first and ask questions later.
Link Posted: 11/2/2008 3:49:11 PM EDT
Originally Posted By crackedcornish:
Originally Posted By Russ4777:
I got mine at <a href="https://www.vbd.com/noc/shop/products_detail.asp?CategoryID=29&ProductID=272" target="_blank">https://www.vbd.com/noc/shop/products_detail.asp?CategoryID=29&ProductID=272[/url].

Here's the finished product. It works perfectly and totally stealth except for a hidden serial number.

http://www.hunt101.com/data/500/medium/LW_Rt_Side_No_Scope.jpg

[url]http://www.hunt101.com/data/500/medium/LW_Lt_Side_No_Scope.jpg</a>



nice work on the lower.

what finish is on it, anodized or painted?

what size cutter did you use to spot the rear take down pin hole and front trigger guard pin with?


The finish is Norrell's Moly Resin in Flat Black. The stuff is really durable and solvent resistant.

I spotfaced the takedown pin hole with a 4-flute end mill 0.437" dia.

The cutter I used for the front trigger guard pin was 0.250" dia with a short vertical cut.



Link Posted: 11/2/2008 3:54:56 PM EDT
[Last Edit: 11/2/2008 3:55:56 PM EDT by Russ4777]
Originally Posted By Jerad:
Originally Posted By Russ4777:
I got mine at <a href="https://www.vbd.com/noc/shop/products_detail.asp?CategoryID=29&ProductID=272" target="_blank">https://www.vbd.com/noc/shop/products_detail.asp?CategoryID=29&ProductID=272[/url].

Here's the finished product. It works perfectly and totally stealth except for a hidden serial number.

http://www.hunt101.com/data/500/medium/LW_Rt_Side_No_Scope.jpg

[url]http://www.hunt101.com/data/500/medium/LW_Lt_Side_No_Scope.jpg</a>


Did it come with a SN or did you do it yourself? And if you don't mind me asking...Why?



The 80% lowers are not considered to be a firearm by the BATFE, therefore they are not serialized. I added a very unique serial number so that I could readily identify the rifle should it be stolen or whatever. As the "finisher" of the lower, I was not legally required to serialize it since I am not regarded as a manufacturer by BATFE.
Link Posted: 11/4/2008 10:56:36 AM EDT
They want more for an incomplete receiver than I paid for a complete RRA after tax.
Link Posted: 11/4/2008 3:39:59 PM EDT
Originally Posted By machinisttx:
They want more for an incomplete receiver than I paid for a complete RRA after tax.



You are absolutely correct! People that finish 80% lowers do so for a variety of reasons which to them are priceless. To each his own!!
Link Posted: 11/4/2008 3:59:51 PM EDT
[Last Edit: 11/4/2008 4:22:24 PM EDT by radian23]
Well the actual reason I did choose to build an 80% AR is due to the paper trail. I just don't like the idea of the government knowing I have an assault rifle. Call me paranoid but things can change over time. I wouldn' call myself a crazy person but I would feel more comfortable having an AR if it wasn't registered.

I now live in the State of Tennessee and have since learned firearms are not registered. Instead background checks are done to check if I can purchase a firearm. Due to this I have decided to purchase an Anvil Arms lower receiver. I will likely purchase a few 0% forged receiver as I have a family member who is an excellent machinist.

Thank you for posting a picture. By the way your rifle looks great. i hope mine will look as nice as yours.
Link Posted: 11/4/2008 10:05:34 PM EDT
Originally Posted By FlyingIllini:
I saw a post on the Roderus site that claimed ATFucks were changing their rules to classify AR lowers that have the trigger well machined as firearms. Be careful... the nazis use this sort of ruling to shoot first and ask questions later.



I saw this too. It also stated there could not be any drilling or even dimpling of the pivot pin holes. The ATF stated they considered dimples to be the same as fully drilled holes.


I would not buy any unfinished receiver unless it came with a certificate stating it was BATF approved as of a few days ago.


Some folks selling/buying receivers that were legit previously, are probably now unknowingly violating federal law, and the ATF will throw them in jail.
Link Posted: 11/5/2008 7:38:45 PM EDT
Originally Posted By GAU5-A-A:
Originally Posted By FlyingIllini:
I saw a post on the Roderus site that claimed ATFucks were changing their rules to classify AR lowers that have the trigger well machined as firearms. Be careful... the nazis use this sort of ruling to shoot first and ask questions later.



I saw this too. It also stated there could not be any drilling or even dimpling of the pivot pin holes. The ATF stated they considered dimples to be the same as fully drilled holes.


I would not buy any unfinished receiver unless it came with a certificate stating it was BATF approved as of a few days ago.


Some folks selling/buying receivers that were legit previously, are probably now unknowingly violating federal law, and the ATF will throw them in jail.


they are not violating federal law until convicted, they are just violating the decree of the BATF. you see, these days, they just say something and the threat of arrest is enough to stop people from doing things. Which I think is absolutely wrong.
Link Posted: 11/5/2008 11:43:49 PM EDT
Originally Posted By Russ4777:
Originally Posted By machinisttx:
They want more for an incomplete receiver than I paid for a complete RRA after tax.



You are absolutely correct! People that finish 80% lowers do so for a variety of reasons which to them are priceless. To each his own!!


I make over $21/hr running a CNC milling machine at work. I have all the CAD files, solid models, blueprints, and CAM software I need to finish one(or machine one from a billet or raw forging for that matter). It's simply not logical to spend two or three hours on setup and machining, plus the time programming and building fixtures while paying more....

I'll pay a fellow machinist until I get bored, desperate, or paranoid.
Link Posted: 11/6/2008 4:09:16 AM EDT
http://www.dsarms.com/AR15-Lower-Receiver-7075-T6-Alloy-Forging-Military-Spec/productinfo/1001/

Less than $30 for this one from DSA *AR15 Lower Receiver 7075-T6 Alloy Forging, Military Spec*

What am I missing?
Link Posted: 11/6/2008 5:42:23 AM EDT
Originally Posted By GimpyPaw:
http://www.dsarms.com/AR15-Lower-Receiver-7075-T6-Alloy-Forging-Military-Spec/productinfo/1001/

Less than $30 for this one from DSA *AR15 Lower Receiver 7075-T6 Alloy Forging, Military Spec*

What am I missing?



That is just a forged blank, not an 80% finished receiver. The internal milling has not been done.
Link Posted: 11/6/2008 6:31:29 AM EDT
not to hi jack the thread but since you are making it yourself and there is no serial number, can you legally make it an SBR?
Link Posted: 11/6/2008 7:29:25 AM EDT
Originally Posted By GAU5-A-A:
Originally Posted By FlyingIllini:
I saw a post on the Roderus site that claimed ATFucks were changing their rules to classify AR lowers that have the trigger well machined as firearms. Be careful... the nazis use this sort of ruling to shoot first and ask questions later.



I saw this too. It also stated there could not be any drilling or even dimpling of the pivot pin holes. The ATF stated they considered dimples to be the same as fully drilled holes.


I would not buy any unfinished receiver unless it came with a certificate stating it was BATF approved as of a few days ago.


Some folks selling/buying receivers that were legit previously, are probably now unknowingly violating federal law, and the ATF will throw them in jail.


Link?
Link Posted: 11/6/2008 8:17:19 AM EDT
Originally Posted By a555:
Originally Posted By GAU5-A-A:
Originally Posted By FlyingIllini:
I saw a post on the Roderus site that claimed ATFucks were changing their rules to classify AR lowers that have the trigger well machined as firearms. Be careful... the nazis use this sort of ruling to shoot first and ask questions later.



I saw this too. It also stated there could not be any drilling or even dimpling of the pivot pin holes. The ATF stated they considered dimples to be the same as fully drilled holes.


I would not buy any unfinished receiver unless it came with a certificate stating it was BATF approved as of a few days ago.


Some folks selling/buying receivers that were legit previously, are probably now unknowingly violating federal law, and the ATF will throw them in jail.


Link?


http://www.homegunsmith.com/cgi-bin/ib3/ikonboard.cgi?s=7d8b53547d0cf4849f16d19444917d71;act=ST;f=98;t=21805

Link Posted: 11/6/2008 8:33:38 AM EDT
Originally Posted By FlyingIllini:
Originally Posted By a555:
Originally Posted By GAU5-A-A:
Originally Posted By FlyingIllini:
I saw a post on the Roderus site that claimed ATFucks were changing their rules to classify AR lowers that have the trigger well machined as firearms. Be careful... the nazis use this sort of ruling to shoot first and ask questions later.



I saw this too. It also stated there could not be any drilling or even dimpling of the pivot pin holes. The ATF stated they considered dimples to be the same as fully drilled holes.


I would not buy any unfinished receiver unless it came with a certificate stating it was BATF approved as of a few days ago.


Some folks selling/buying receivers that were legit previously, are probably now unknowingly violating federal law, and the ATF will throw them in jail.


Link?


http://www.homegunsmith.com/cgi-bin/ib3/ikonboard.cgi?s=7d8b53547d0cf4849f16d19444917d71;act=ST;f=98;t=21805




Any other publicly available sources?
Link Posted: 11/6/2008 8:41:27 AM EDT
Originally Posted By FlyingIllini:
Originally Posted By a555:
Originally Posted By GAU5-A-A:
Originally Posted By FlyingIllini:
I saw a post on the Roderus site that claimed ATFucks were changing their rules to classify AR lowers that have the trigger well machined as firearms. Be careful... the nazis use this sort of ruling to shoot first and ask questions later.



I saw this too. It also stated there could not be any drilling or even dimpling of the pivot pin holes. The ATF stated they considered dimples to be the same as fully drilled holes.


I would not buy any unfinished receiver unless it came with a certificate stating it was BATF approved as of a few days ago.


Some folks selling/buying receivers that were legit previously, are probably now unknowingly violating federal law, and the ATF will throw them in jail.


Link?


http://www.homegunsmith.com/cgi-bin/ib3/ikonboard.cgi?s=7d8b53547d0cf4849f16d19444917d71;act=ST;f=98;t=21805



It appears that a 80% lower receivers are supposed to be sent to the ATF for a determination and that the above letter was in response to one particular receiver being submitted for a determination –– apparently, it determined that it didn't qualify as an "80% complete receiver".
Link Posted: 11/6/2008 10:36:52 AM EDT
Originally Posted By pvtwillig:
not to hi jack the thread but since you are making it yourself and there is no serial number, can you legally make it an SBR?


Absolutely not, unless you do the BATFE paperwork and pay the $200 fee for the tax stamp.
Link Posted: 11/6/2008 10:55:26 AM EDT
Originally Posted By machinisttx:
Originally Posted By Russ4777:
Originally Posted By machinisttx:
They want more for an incomplete receiver than I paid for a complete RRA after tax.



You are absolutely correct! People that finish 80% lowers do so for a variety of reasons which to them are priceless. To each his own!!


I make over $21/hr running a CNC milling machine at work. I have all the CAD files, solid models, blueprints, and CAM software I need to finish one(or machine one from a billet or raw forging for that matter). It's simply not logical to spend two or three hours on setup and machining, plus the time programming and building fixtures while paying more....

I'll pay a fellow machinist until I get bored, desperate, or paranoid.



2-3 hours eh? I have been working on 8 raw forgings. Doing all the programming, fixtures, setups, CAD work, EDMing, and actual cutting time, I have over 50 hours in 8 0% raw forgings. My time is free, so I really only have the cost of the forgings, and a couple of tools in them. It's been a fun project, but I'll probably just buy lowers next time.

As to the OP, just buy finished lowers, unless you plan on doing one from a 0% forging. The cost of a 80% "forging" + finishing is just plain silly.
Link Posted: 11/6/2008 1:41:57 PM EDT
Seems the 80% fad has passed. I remember when they first came out, folks were all over them.

I'm really curious just how many of those 80% lowers ever got finished. I suspect the project proved more difficult than many realized.
Link Posted: 11/6/2008 4:00:22 PM EDT
Originally Posted By Ameshawki:
Seems the 80% fad has passed. I remember when they first came out, folks were all over them.

I'm really curious just how many of those 80% lowers ever got finished. I suspect the project proved more difficult than many realized.



Actually, I found the last 20% to be pretty easy. I used another completed lower as my pattern and drill guide and did the whole thing on a good drill press with a 2-axis slide vise. A friend and I shared the cost of the extension tube hole reamer and tap. Already had all the other end mills and drills. It took about 6 hours to complete the machine work including setup and machine time. Blasting and Moly Resin took another hour. It was fun and rewarding.
Link Posted: 11/6/2008 4:26:54 PM EDT
Tag for home reading.
Link Posted: 11/24/2008 12:18:52 PM EDT
Originally Posted By Ameshawki:
Seems the 80% fad has passed. I remember when they first came out, folks were all over them.

I'm really curious just how many of those 80% lowers ever got finished. I suspect the project proved more difficult than many realized.


COnsidering the availability of any lowers these days, it might be more than a passing fad. But, there were probably more lowers sold than ever completed. You don't see many photos of them here anyway.

Link Posted: 11/27/2008 11:49:29 AM EDT
Yeah can't imagine why folks wouldn't want to advertise what they got in that dept.
Link Posted: 11/29/2008 2:07:47 PM EDT
Yeah, I see your point. 'Course, personally, having lost all my guns in a tragic boating accident a few years back, I only post here on ARFCOM out of a sense of nostalgia & due to the comedic nature of the General Discussion forum.


Originally Posted By Colt_sporter:
Yeah can't imagine why folks wouldn't want to advertise what they got in that dept.


Link Posted: 11/29/2008 7:07:54 PM EDT
[Last Edit: 11/30/2008 7:54:11 AM EDT by GimpyPaw]
I also have a hunch that, with all the CNC machines out there, more than a few chunks of aluminum stock now have a strong resemblance to the mil-spec ar-15 lower.
Link Posted: 11/29/2008 8:27:02 PM EDT
Originally Posted By Ameshawki:
Seems the 80% fad has passed. I remember when they first came out, folks were all over them.

I'm really curious just how many of those 80% lowers ever got finished. I suspect the project proved more difficult than many realized.


it's my understanding that with the proper jig, the hardest part of finishing it is tapping the buffer tube threads.

I have no personal experience with an 80%, but I heard it through the grapevine.
Link Posted: 11/30/2008 5:20:36 AM EDT
Originally Posted By GimpyPaw:
I also have a hunch that, with all the CNC machines out there, more than a few chunks of aluminum stock that now have a strong resemblance to the mil-spec ar-15 lower.


Formerly bar stock AL:




Link Posted: 12/12/2008 1:45:58 PM EDT
Amazing thing about that lower is he did not rely on CNC. He used simple DROs and a manual mill. F-ing hardcore machining there!
Link Posted: 12/12/2008 2:06:50 PM EDT
Originally Posted By FlyingIllini:
Originally Posted By GimpyPaw:
I also have a hunch that, with all the CNC machines out there, more than a few chunks of aluminum stock that now have a strong resemblance to the mil-spec ar-15 lower.


Formerly bar stock AL:

http://www.hunt101.com/data/500/DSC00384.JPG



that is total sweet

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