How to build an AR M-16 "type" weapon

[posford]

Copying Docs thread from the other place

We will start with your typical AR evil black rifle. It is the black Barbie doll of the rifle world. You can dress it up for a night out on the town or a weekend in the woods camping :D And EVERYTHING can be attached to this weapon in some form But humor aside, the AR is a very nice building platform. You can build anything from a plinker to a full on target destroyer. You can get an upper receiver in just about any caliber from .22 to .50BMG.

This build is from your basic bare lower and a mail order assembled and headspaced upper. Later more complicated builds and assembling your own upper will be added as needed.

assembling your lower is pretty much the....umm..."hard part" but here is that part.
This is the inside parts.

This way you know what the fuck these little parts are.

and your pile of shit

The only "tools" I am using are common shit you should have in the house. A pair of robogrip pliers, a brass hammer, a brass drift and a flathead screwdriver. You can improvise most of these tools.

First we put in the magazine release

stick it in the lower receiver

and drop the spring on the threaded post

 

[posford]

now screw the button on a few threads

next use something to push the button INSIDE the receiver so you can twirl around the magazine catch to tighten it

and tighten till the screw is flush with the button

next is the trigger guard.
stick the roll pin in the front hole

put some paper or some shit on the other side and use pliers to push till it just sticks through

 

[posford]

next stick the trigger guard in place and make sure the little detent nub thingie is on the right side/place

and press the roll pin the rest of the way through

and lock in place

next is the bolt hold lever
this is the detent thing and spring

and drop in place

 

[posford]

next install the roll pin. some tape will keep you from fucking up the receiver with the brass hammer. the brass wipes of anyway.

tap the pin till it just pokes through

and drive it the rest of the way with the lever in place

next is the detents and springs for the front pin. "supposedly" the hardest parts to do :rolleyes:
It goes in this hole in front

this is how you do it:
Drop the spring in the hole, hold the receiver between your legs, with your right fingers put the brass pin on the spring and get in just in the hole, with your left fingernail push it the rest of the way in and hold it, now with the right hand stick the front pin aimed at the hole it goes and place it ON your finger nail, pull away nail and insert dowel with the "channel" in it away from the spring/pin till you get it in the hole like this

you could also use a knife blade instead of your fingernail

 

[posford]

and rotate it around till it "clicks"

next is the fire control group

trigger spring goes on like this

disconector with its little spring like this

hammer spring like

and you well.....line the fuckers up to their corresponding holes and stick the fucking pin through

safe lever goes in here with the hammer cocked back

 

[posford]

this funny shaped pin is the one for the selector

the pin goes in the hole in the reciever and the spring goes in the grip

next is the rear pin detent and the buffer tube/stock

the pin goes here, stick the rear pin in first

next the spring

 

[posford]

buffer retainer and spring goes in here

press the detent spring in with whatever plate/stock/whatever you are using

and screw the buffer tube in till it locks in the buffer retainer.

and lock your shit in place with however your shit is supposed to be locked in

insert your buffer and spring and you are done

Questions? Comments?
oh and add more shit to the thread as needed

 

[Clb]

Well done sir.

Thanks for not muddying the waters with the unconstitutional P.R.K. laws.

For those on the fence, bump the budget up for better quality up front.
You can easily upgrade the rest of the system later.

Now go build one.

Eta
Guess foundries suck today seeing the fubar second / blem below...
Lets say fire control ?(ok)?

 

[Gots_a_sol]

This thread and the AK thread over there got me hooked on building the stupid things. Thanks for reposting it here

 

[posford]

This thread and the AK thread over there got me hooked on building the stupid things. Thanks for reposting it here

I considered the AK thread as well, I have my flat bending dies and everything still from building an AK. I'm going to do an AR this weekend and wanted the info where it didn't suck to try to follow it.

 

[Aisin]

Well done sir.

Thanks for not muddying the waters with the unconstitutional P.R.K. laws.

For those on the fence, bump the budget up for a better quality lower up front.
You can easily upgrade the rest of the system later.

Now go build one.

A $30 Anderson lower is the same fucking thing as a $150 Daniel Defense lower. Stop spreading Fuddlore.

 

[posford]

A $30 Anderson lower is the same fucking thing as a $150 Daniel Defense lower. Stop spreading Fuddlore.

Holy fuck, I actually agree with you!
Fuckin poverty pony lowers are up to $80 though

 

[Clb]

Cosmetically maybe not
Wanna Argue Parts Kits?
Btw I've got an Anderson lower

 

[PAE]

You would need a M16 LPK to make it rock or other accessories lol.

 

[Aisin]

Holy fuck, I actually agree with you!
Fuckin poverty pony lowers are up to $80 though

No. Anderson no logo lowers are $44 currently.

 

[Aisin]

Cosmetically maybe not
Wanna Argue Parts Kits?
Btw I've got an Anderson lower

This is a Daniel Defense upper. The gas port location is as crooked as a Jewish lawyer. Wanna argue about name brands?

 

[Clb]

Nope...
Removed ofending fud

 

[Aisin]

Nope...
Removed ofending fud

Not trying to be a dick. I’ve hacked together several dozen ARs in the last 10 years. I’ve had more issues with higher end manufacturers receivers than I have had with poverty ponies.

 

[Clb]

That's fukt UP.
Understood, but fukt up.
Makes me sad.

 

[Aisin]

That's fukt UP.
Understood, but fukt up.
Makes me sad.

I’m not a name brand guy. I’ve seen a complete set of Brodix BBC heads that needed another $1500 in machine work to get them usable.

 

[Toreadorranger]

Use a 1/4" clevis pin to install the front take down pin. Put the spring and pin in through one of the holes then use a punch to depress and spin the pin 90* then push it out with the actual take down pin to install.

 

[PAE]

I use HK 91 take down pins.

Have a built in detents.

Use a 1/4" clevis pin to install the front take down pin. Put the spring and pin in through one of the holes then use a punch to depress and spin the pin 90* then push it out with the actual take down pin to install.

 

[FrankenToy]

No. Anderson no logo lowers are $44 currently.

Actually, currently in OSR Deals there is a $29 lower posted, not sure of the brand but it does have the solid trigger guard....

 

[Aisin]

Actually, currently in OSR Deals there is a $29 lower posted, not sure of the brand but it does have the solid trigger guard....

Nice

 

[posford]

Bought 3 matrix Arms lowers, $59 each