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Biulding an AR-10? 80% forgings?

This is a discussion on Biulding an AR-10? 80% forgings? within the M16 AR15 forums, part of the Rifle Forum category; I was approached the other day about building AR-10's. I guess I can buy an 80% forging and we can go from there. Has anyone ...


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Old May 17th, 2011, 06:01 AM   #1
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Biulding an AR-10? 80% forgings?

I was approached the other day about building AR-10's. I guess I can buy an 80% forging and we can go from there. Has anyone done this? What was your experience?

Is this a new thing?

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Old May 17th, 2011, 06:27 AM   #2
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its not a new thing. in the end after you buy the tooling needed to finish an 80% reciever, you will have spent more money than it would have cost to buy a top grade finished product. typically two types of people do 80% builds, guys that just like to experiment and build something new and different, and then those that fear the gvmnt knowing they own a firearm. google homegunsmithing foum, the place used to thrive on 80% builds.

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Old May 17th, 2011, 06:31 AM   #3
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The gentleman that approached me has a fully automated CNC machine so we would just have to do the milling and send them off to be anodized afterwards.

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Old May 17th, 2011, 06:36 AM   #4
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Not really "new", just a little out of the mainstream.

By the time you get the jig, http://www.cncguns.com/tooling.html , do all the completion machining and get the finish done, it is not really less expensive than a completed one. No FF&L required for an 80%, but the manufacturer has to have a letter on file from ATF officially excepting it.

The prices I have seen are not as much off the finished receivers as one would think.

With all of that said, if you have a Firearms Manufacturing FF&L, you could certainly add your own touch to your own line. Since we here are "married" to our M1A's, you could call yours the "Mistress"....

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Old May 17th, 2011, 09:38 AM   #5
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I would totally buy the jigs, and learn how to do the work, if I had a CNC machine (and had the space for one to boot).

Since I'm not wealthy, I have to buy mine completed :(

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Old May 17th, 2011, 10:25 AM   #6
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Do a search on CANADIANGUNNUTZ.COM. there was a guy there who built an AR 10 receiver from a block of aluminum. He might have a CAD/CNC program you could port over for your project, or at the least some advice from one machinest to another.

PS: Good luck with you AR 10 do-it-yourself project. I am always supportive of do-it-yourselfers. Since a complete AR10 lower is relatively inexpensive, I suspect you are NOT doing this to save a few bucks.

PPS: I have owned quite a few of the AR10 rifles. Back in the day, I completely [ COMPLETELY!!!] stripped a few dozen of the GENUINE/ORIGINAL military surplus Dutch built versions for inspection,repair, and refinishing, and then reassembled them for resale. They all worked GREAT, and most of them were superbly accurate. If you need any AR 10 assembly advice once you get past the receiver build, feel free to PM me.

My current favorite "modern" AR 10 [ all the modern versions of the original AR 10 design are now basically AR 10/AR15 hybrids] is a DPMS built Remington R25. All three of mine shoot SUB-moa. I would recommend the DPMS pattern receiver, as it allows the use of the best AR 10 magazines available, the plastic AR 10 Pmags.
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http://www.ar10.nl/receivers.htm

http://www.ar10t.com/

http://www.quarterbore.net/forums/forumdisplay.php?f=45

http://www.scribd.com/doc/13758625/Ar10-Blueprints

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Old May 23rd, 2011, 05:50 PM   #7
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Quote:
Originally Posted by MajorJim View Post
...No FF&L required for an 80%, but the manufacturer has to have a letter on file from ATF officially excepting it.
...
With all of that said, if you have a Firearms Manufacturing FF&L, you could certainly add your own touch to your own line. ...
Don't know what you mean by this, but US law (and code) has no requirement for an individual to have anything on file with ATF. If it is not full auto and is otherwise legal (16"/26" or more, etc.) and you are making a gun for personal use (not resale) you can make your rifle and nothing is registered or filed with ATF. Handguns too.

State laws may differ.

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Old May 23rd, 2011, 06:51 PM   #8
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I saw those recievers a while back and just couln't see enough savings to justify it. Unless you are going to mass produce them and if that is the case you would be better of making your own jigs and doing all the machining. I think some of the work is typically done with an edm machine. Tabletop model wire EDM machines go for less than 20k now. Its actually not that difficult to build an anodizing system with common stuff.
What can you get an 80% finished part for? I suspect you could tool up for under 50k. I don't know about firearms manufacture liscense. It is probably difficult and expensive.
Sorry if I veered off course. I have had thoughts of trying this myself.

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Old May 24th, 2011, 05:35 AM   #9
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Quote:
Originally Posted by tonyben View Post
I was approached the other day about building AR-10's. I guess I can buy an 80% forging and we can go from there. Has anyone done this? What was your experience?

Is this a new thing?
PM sent with a link to a forum for gun builders.

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Old May 24th, 2011, 11:44 AM   #10
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cheaper to buy a matched upper/lower and assemble one yourself

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