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Posted: 3/3/2015 11:02:02 AM EDT
Hi all,

I've assembled several AR's from 100% receivers, but would like to now try out a 0%. I wanted to start with an 80% but those cost more than 100%'s . I've seen 0% lowers advertised as a simple square block of aluminum, and also as a forging very similar to an 80%. That forging style is the type I'm looking for. Looking for the best price I can get as it won't hurt as much if I muck it up and I plan on atleast getting 2 or 3. Poly or aluminum, does not matter as I'm using this as a learning/fun task.

Thanks in advance,
Ry
Link Posted: 3/3/2015 11:43:54 AM EDT
Aero Precision does or used to sell a 0% for $25, but I can't find it on their new website.
Link Posted: 3/3/2015 11:43:54 AM EDT
[Last Edit: 3/3/2015 11:49:38 AM EDT by sleep203]
I've seen a couple of the 80% Lower suppliers have raw forgings for sale.

Contact Matt @ Medicfirearms. He had several blank forgings for sale a few months ago. (855) 318-2190 or matt@medicfirearms.com.

edit: found these, haven't used any of these companies. (Matt had them for 17 apiece, might be lower now as he was trying to get rid of them.)

http://www.ar15brick.com/index.php/0-brick.html
http://www.tacticalinc.com/ar15-lower-receiver-raw-forging-p-1108.html
https://rguns.net/shop/r-guns-lower-forging/
Link Posted: 3/3/2015 12:02:33 PM EDT
Thanks guys. I have an email to Matt. If that does not work out, that the ar brick site has free shipping so I think they might be the place.
Link Posted: 3/3/2015 1:22:10 PM EDT
[Last Edit: 3/3/2015 1:22:55 PM EDT by coctailer]
Link Posted: 3/3/2015 1:25:25 PM EDT
Be sure to start a thread showing your progress. Everybody always saying it's not worth the work making one from a 0%
Link Posted: 3/3/2015 3:28:19 PM EDT
Too expensive but another option.

http://www.dsarms.com/p-14036-ar15-lower-receiver-forging-7075t6-alloy-military-spec-unmachined.aspx
Link Posted: 3/3/2015 4:49:46 PM EDT
Shouldn't he just be able to get a standard 7075-T6 aluminum block from any metal supplier? I mean you should have to do is figure out the full outer dimension of the lower receiver, then add a little material to all sides. Then program that into the CNC. There isn't anything special about the material.

I don't' know what those dimensions would be off hand, but once you do, maybe try to source it locally.
- Looks like it needs to be about 1.5"w x 9"L x 5"T. But please verify that.

80% Arms also has 0% for $29.
Even better, check this out:http://www.ar15brick.com/index.php/0-brick.html
- Forged and ready to mill out the guts

Ha ha; check out this video.
https://www.youtube.com/watch?v=ehFG68qY5vA
"Just a little machining and remove about 4lbs of material."
Easy day, right.
Link Posted: 3/3/2015 5:38:06 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By castiel:
Be sure to start a thread showing your progress. Everybody always saying it's not worth the work making one from a 0%
View Quote


It might be worth it if your objective is the experience and education.

Link Posted: 3/3/2015 8:03:14 PM EDT
Thanks everyone for the replies. I'll try to do a pictorial and post it.

I spoke with Matt today from medicfirearms and bought my forgings. Very nice and professional guy. I certainly will purchase from him in the future. Thanks for that recommendation.
Link Posted: 3/3/2015 9:25:29 PM EDT
DS Arms has them for $35 with $4 shipping.

80% lower
Link Posted: 3/7/2015 11:49:17 AM EDT
80%ers for $29 buck apiece when you buy 3.

http://www.ar15.com/forums/t_1_5/1725090_Wow_______29_80__lowers_.html
Link Posted: 3/7/2015 12:08:30 PM EDT
[Last Edit: 3/7/2015 12:08:56 PM EDT by Sixtysixdeuce]
I've seen 0% lowers advertised as a simple square block of aluminum, and also as a forging very similar to an 80%. That forging style is the type I'm looking for.
View Quote


It would actually be easier to start with a chunk of billet if you do not have fixtures for the forging.

If this is just about saving $20 or $30, forget it. The receiver extension housing tap alone costs more than an 80% lower. And if you don't have a good vertical mill with a full complement of tooling, forget it. While you can finish an 80% with hand held power tools, a 0% requires basically full machine shop capabilities.

I do have a small machine shop, and I have built lowers from scratch (and whole guns), but if you do not have substantial equipment and experience, you'll end up with what many companies advertise their 0% forgings as: a paper weight.

Not trying to discourage you from trying if you have the capability, just want to make sure you understand what you're getting into. It ain't something you can do with a drill press, router and Dremel. Not even close.


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