10% CNC10/AR10 lower receiver group buy

[cornholio1]

Any update on it?  Mitch must be really busy.  I haven't got an e-mail from him for awhile.  The price is what stops me from buying a 0%

[jwh02017]

There hasn't been a whole lot of interest in the AR10 10%'ers.  I haven't really been trying to push them since I've been so busy with other things.  If some of you guys want to go post over on AR15.com and other places that I might be doing a batch of AR10's, then that might generate enough interest to start a batch of these.

Thanks,
Justin

[fr1971]

what about a 80% ar10 i would like one of those

[jwh02017]

what about a 80% ar10 i would like one of those

It'll have to be 10% until I get something approved by the ATF.

Justin

[fr1971]

how about 70% or will you still be at risk

[jwh02017]

The % doesn't matter.  I don't care if you call it 85% or 65.2235%, in the eyes of the ATF, it's either a firearm, or it's NOT.  The 10%'ers are far enough from being a firearm that there is no way it could be considered a firearm.

Justin

[Greenbean]

I would take one, (maybe two as I always seem to mess up at least once on every project).

[goober]

just giving a bump to this. have a 45 paperweight on order (haven't received yet) but i know justin's work so i'd definitely buy a 10% ar10 if and when they become available.
-goob

[RndmNmbr]

Does anyone have a rough figure on what getting the magwells EDMed on a batch of these would be?  Say I bought at batch of 10 lowers, what kind of ballpark are we talking about to get the magwells cut?  I know Justin had them EDMed for his original builds, but he didn't post the price - only that it was expensive.

I don't think I personally need 10 or more AR10s but I might be willing to buy a larger lot than I need and resell them in order to get things moving and get the ones I want ... capitalism in action!  Problem is that I would need the wells cut ...

[cornholio1]

Does anyone have a rough figure on what getting the magwells EDMed on a batch of these would be?  Say I bought at batch of 10 lowers, what kind of ballpark are we talking about to get the magwells cut?  I know Justin had them EDMed for his original builds, but he didn't post the price - only that it was expensive.

I don't think I personally need 10 or more AR10s but I might be willing to buy a larger lot than I need and resell them in order to get things moving and get the ones I want ... capitalism in action!  Problem is that I would need the wells cut ...

Justin, put me on your interest list.  Is there any way it could be made cheaper Justin?  Out the door this lower will probably cost $500 ea  RndmNmbr....e-mail or PM me, I know of an EDM place that quoted me $75 for one.  Bulk rates are available (such as 10), but I haven't seen his quality of work yet.

[jwh02017]

The only way to make these cheaper is to get alot more quantity.... say around 100 pieces.  3-d profile machining the receivers just take a long time and the AR10 is bigger than the AR15, so it'll take even longer.

Justin

[RndmNmbr]

Justin,

What if you just did the profiling to a rough finish?  Perhaps forcing the person finishing it into starting with something more akin to a forging?  Obviously it would be good if certain surfaces were finish cut to final spec (upper deck, buffer tower rear plane, etc.) but I'm wondering what would happen if you sacrificed final surface finishing during 3D profiling in favor of speed.  Would this save a significant amount of CNC time per lower?

Just a random thought ...

[jwh02017]

Well, I could increase the step over size of the 3d machining.  This could save a few minutes.  But I don't think it would be enough to make a big difference in the price though.  You would only save a few dollars, but have a much rougher finish.  I'd personally rather not sell something that looks like it just went through a saw mill.  I strive on producing nice looking parts, and I just wouldn't feel right about selling something that looks half ass...haha

If I didn't drill and tap the buffer hole, that would probably save a few dollars too.

Justin

[The Law]

Another thing to remember too.  The less Justin does, the more I have to do.  So if Justin's price gets cheaper than it is likely that mine will increase.  Especially if I have to cut and thread that damn buffer tube hole.  I hate that.  I'd rather file out a magwell by hand then tap that big bastard ;-)

[cornholio1]

Another thing to remember too.  The less Justin does, the more I have to do.  So if Justin's price gets cheaper than it is likely that mine will increase.  Especially if I have to cut and thread that damn buffer tube hole.  I hate that.  I'd rather file out a magwell by hand then tap that big bastard ;-)

Is it that hard?  I thought Justin sold a jig that could seat the lower and someone with a drill press could tap it using the jig as a guide. 

[FUBob]

Another thing to remember too.  The less Justin does, the more I have to do.  So if Justin's price gets cheaper than it is likely that mine will increase.  Especially if I have to cut and thread that damn buffer tube hole.  I hate that.  I'd rather file out a magwell by hand then tap that big bastard ;-)

Is it that hard?  I thought Justin sold a jig that could seat the lower and someone with a drill press could tap it using the jig as a guide. 

i am not answering for justin but since this is for a 10% lower, the whole fire control area area and more than likely the magwell wouldn't be completed, would be more like how the 10% ar45 lowers were due to the atf.  that is where khalan comes in - he is a firearm manf so he can cut the fire control area and magwell and turn a "paperweight" into a registered receiver.  don't get me wrong, turning a block of aluminum into even a 10% "paperweight" takes a lot of time, but at that point it is not considered a firearm.

the jig justin has is for 80% ar15 lowers.  at this time justin makes the jig but does not make a 80% ar15 lower.  hope this clears it up for you.

[jwh02017]

The jig I sell does help to tap the buffer tube hole.  But it's MUCH easier to tap this hole on a CNC machine.  FUBob, you are correct about being able to use this jig with 80% AR15 lowers, but you can also use it with 10% and even raw forging since you can use the jig to help hold the receiver flat and square while you machine the receiver.  Hell if you guys wanted, I could do my part on the 10% AR10 lowers, and then Mitch can do his part, and leave the buffer NOT threaded and let you guys do it.  But again, I would suggest letting a CNC machine do it since you won't have to worry about messing up the threads.

Justin

[Prototype Services]

I'm a machinist, and that big buffer thread is the only reason I don't want to pursue a partial AR receiver.
And my desire for the hard anodizing.

[goober]

i am not answering for justin but since this is for a 10% lower, the whole fire control area area and more than likely the magwell wouldn't be completed, would be more like how the 10% ar45 lowers were due to the atf.  that is where khalan comes in - he is a firearm manf so he can cut the fire control area and magwell and turn a "paperweight" into a registered receiver.  don't get me wrong, turning a block of aluminum into even a 10% "paperweight" takes a lot of time, but at that point it is not considered a firearm.

the jig justin has is for 80% ar15 lowers.  at this time justin makes the jig but does not make a 80% ar15 lower.  hope this clears it up for you.

i'd hope that the magwell on a 10% AR10 lower would be at least most of the way done, w/ just a shelf to knock out or somesuch... i'd be interested if so. otherwise not.
and yes the jig justin sells is quite helpful for finishing 0%, 10% or 80% AR15 lowers whether they be castings, forgings, or CNC.
-g

[The Law]

The magwell will have to be done or not at all since it has to be EDM cut do the the corners and angle.