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1/22/2008 5:58:22 AM EDT
widmn's thread about titanium uppers got me thinking.

Would there be any legal issues if I wanted to have a machine shop make me a lower from scratch? That is to say, that I sit down and design a lower, then take them the CAD files and pay them to machine it for me?

1/22/2008 7:03:38 AM EDT
[#1]
you've got to make it i.e. chuck it up and press the button, unless the shop has the appropriate FFL
1/22/2008 7:21:12 AM EDT
[#2]
That's why they come only 80%.  You can qualify as a personal manufacturer by machining the remaining 20%.  You are allowed to "manufacture" one firearm a year and it must be for personal use only.
1/22/2008 7:44:48 AM EDT
[#3]

Quoted:
That's why they come only 80%.  You can qualify as a personal manufacturer by machining the remaining 20%.  You are allowed to "manufacture" one firearm a year and it must be for personal use only.


The 80% rule denotes the end user having to finish the recess for the FCG and drill all the holes for the pins right?
1/22/2008 11:09:23 AM EDT
[#4]

Quoted:

Quoted:
That's why they come only 80%.  You can qualify as a personal manufacturer by machining the remaining 20%.  You are allowed to "manufacture" one firearm a year and it must be for personal use only.


The 80% rule denotes the end user having to finish the recess for the FCG and drill all the holes for the pins right?


I've never done so I'm not sure.  I think it's all that and more, like threading the end for the reciever extension too.
1/22/2008 1:10:53 PM EDT
[#5]

Quoted:
That's why they come only 80%.  You can qualify as a personal manufacturer by machining the remaining 20%.  You are allowed to "manufacture" one firearm a year and it must be for personal use only.


part in red isn't true, there is no limit on how many you can make a year.  Don't believe me go to www.homegunsmith.com and do some looking around on there.

If you do it you need to buy an 80% or less and complete it yourself (can't contract it out to be completed, you have to do it all).  you do not need to put a serial number or any info on it, but it is probably a good idea to do so.  The usual info goes on there

Name
Address
SN
Caliber
ect

1/22/2008 1:14:50 PM EDT
[#6]

Quoted:

Quoted:
That's why they come only 80%.  You can qualify as a personal manufacturer by machining the remaining 20%.  You are allowed to "manufacture" one firearm a year and it must be for personal use only.


The 80% rule denotes the end user having to finish the recess for the FCG and drill all the holes for the pins right?


All holes must be drilled (FCG, mag catch, buffer retainer)
buffer tube tapped
pistol grip screw tapped

Depending on what % you get you may or may not need to mill the mag well, some come done already via EDM, others don't and you need to do that yourself

www.homegunsmith.com forum and info here
www.cncguns.com forum and AR15 receiver jig here
www.tanneryshop.com 80% receivers and other types here

go nuts.  It's cheaper to buy a completed lower though.
1/22/2008 1:20:20 PM EDT
[#7]
You can make as many firearms you want a year.  Either from 80%, 20% or even block.  Doesn't matter... BUT, you can not make with intent to sell.  That changes things, must be a ffl to do so, and SN all guns/receivers.


now i didn't see it mentioned above, but i do believe you can get a machine shop to do an 80% for you.  It's the same as buying an 80%.  You just have to drill the control pins, pivot and take down pins and ream/tap the buffer tube.
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