Finishing 80% AR receiver

[Wildweasel]

here is a good link for a description of the mini mills and reviews. mini-mill.com home page

 

[CWulf]

It's a lower receiver that needs the fcg milled, selector,trigger,and hammer holes drilled. It's basically a paper weight till you finish it and can can have it sent to your house without going through an ffl. There are no numbers or engravings on them.

Dropride - Thanks, I was scratchin my head on this...

 

[7.62x39]

I finished it up this morning.
I used a spot/center drill to make a couple of small divots for the selector markings. These drill are perfect for this. The angle that these cut at leaves a nice round hole at a very shallow depth. With a standard bit you need to drill quite a bit deeper before you get a perfectly round hole. They come in 10 sizes, but I find 1 -5 the most useful. I use them whenever I need to locate a hole very accurately.

I also assembled the stripped upper that I got in the matrix group buy. I have everything I need to finish it except for a barrel and buffer tube.

 

[Gillham]

I finished it up this morning.
I used a spot/center drill to make a couple of small divots for the selector markings. These drill are perfect for this. The angle that these cut at leaves a nice round hole at a very shallow depth. With a standard bit you need to drill quite a bit deeper before you get a perfectly round hole. They come in 10 sizes, but I find 1 -5 the most useful. I use them whenever I need to locate a hole very accurately.

I also assembled the stripped upper that I got in the matrix group buy. I have everything I need to finish it except for a barrel and buffer tube.

Pretty

 

[DJ_99Wing]

I finished it up this morning.

7.62 It looks Great. Anti Rotation pins. Nice touch...

 

[7.62x39]

Thanks guys,

I received the buffer tube today, only thing left now is the barrel. It's really nice out today, I might just slap another of my uppers on it and take it for a test drive.

 

[ntomsw]

A chance to test it yet? How has all the parts fit up to this point?

 

[7.62x39]

I got a chance to put an upper on it and take it for a test drive. (actually 3 different uppers) It runs like a swiss watch.
I also finished up the second receiver.

 

[slugworth]

Nice work!!

 

[slugworth]

Question, if someone was to question your rifle how do you prove you built it yourself? I mean if they ask why there isn't any serial #'s on it ect......

 

[7.62x39]

Question, if someone was to question your rifle how do you prove you built it yourself? I mean if they ask why there isn't any serial #'s on it ect......

Why would I ever need to prove I built it? But if I ever did, I think that the step by step pics of me doing so should cover that. lol.
Who is they? There is no need to put a serial number on a home build, unless you sell it somewhere down the line.

 

[slugworth]

Why would I ever need to prove I built it? But if I ever did, I think that the step by step pics of me doing so should cover that. lol.
Who is they? There is no need to put a serial number on a home build, unless you sell it somewhere down the line.

Got it. Thanks for the info.

 

[7.62x39]

Somebody was looking for these numbers. measurements are taken from 0,0 and are for use with a .375 end mill.
See post # 26 in this thread for 0,0 info

 

[7.62x39]

Finished

http://www.northeastshooters.com/vb...19794-finishing-upper-80%-receiver-build.html

 

[SIGPRO 226]

Do any of you guys have a jig i can borrow for a day or two?

 

[akma]

Great job. I ran into this. It seems easier to complete but not sure if anyone else has used them. It's a polymer lower that does need a jig. http://aresarmor.com/store/Item/Polymer-Black

 

[noxin]

Those 80% NoJig do seem okay. There's a video of someone doing it in an hour, but, it was bending and flexing a lot in the video.

 

[akma]

Here's the video. Pretty straight forward. The guy comments on how hard it is to cut the kevlar reinforced poly compared to the white filler. BTW the lowers are only $50 plus shipping.
Where is the best place to get AR parts kits?

 

[7.62x39]

TM is having a sale on 80% receivers. I just ordered up a couple and it got me thinking about this thread. Looks like I never got around to posting pics of the finished rifles.

 

[AntiHippie]

TM is?

 

[slap shot]

tactical machining

https://www.tacticalmachining.com/