How to build an AR M-16 "type" weapon - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 04-05-2007, 07:29 PM   #1 (permalink)
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How to build an AR M-16 "type" weapon

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 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
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Old 04-05-2007, 07:37 PM   #2 (permalink)
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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
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Old 04-05-2007, 07:46 PM   #3 (permalink)
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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
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Old 04-05-2007, 07:59 PM   #4 (permalink)
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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
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
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Old 04-05-2007, 08:05 PM   #5 (permalink)
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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
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Old 04-05-2007, 08:10 PM   #6 (permalink)
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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
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Old 04-05-2007, 08:17 PM   #7 (permalink)
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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
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Old 04-05-2007, 08:46 PM   #8 (permalink)
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Very similar to the thread on AR15.com. The way I got the pivot pin spring and detent was a friend and a knife. Worked well, we only launched the detent once.
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Old 04-05-2007, 09:00 PM   #9 (permalink)
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Quote:
Originally Posted by Jason R View Post
Very similar to the thread on AR15.com.
they used things like ".125 steel punches" and shit like that, instead of "a pair of fucking craftsman RoboGrip pliers" I bet
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Old 04-05-2007, 09:06 PM   #10 (permalink)
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Nice write-up. Right to the point, no fucking around

I have the same stock on my SBR and I love it.
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Old 04-05-2007, 09:10 PM   #11 (permalink)
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oh and before the question is even asked:
DPMS receiver $125
ACE SOCOM stock $150
DoubleStar upper and lower parts kit $500
Ergo grip $20

The upper is a 16" chrome lined fluted heavy barrel chambered in 5.56NATO with a flat top upper.

Yes this weapon can be built for less, and a "generic" AR can be built for a LOT less. But go and price a decent built weapon to what you want to build and you will see the price difference immediately
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Old 04-06-2007, 01:36 AM   #12 (permalink)
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Good post doc. It is not very hard to build a AR, it should not take anyone more than an houre to assemble a lower.
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Old 04-06-2007, 05:09 AM   #13 (permalink)
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Quote:
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Good post doc. It is not very hard to build a AR, it should not take anyone more than an houre to assemble a lower.
It took me less than that while photographing and cooking dinner It took longer to resize the images and do all the typing.
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Old 04-06-2007, 06:54 AM   #14 (permalink)
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Quote:
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they used things like ".125 steel punches" and shit like that, instead of "a pair of fucking craftsman RoboGrip pliers" I bet
Thats exactly what they do. I read their thread and it was like 4 post long just to get the lower parts put on
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Old 04-06-2007, 07:39 PM   #15 (permalink)
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What kind of retard can't build an AR?!?! They're like Legos for gun nuts.
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Old 04-06-2007, 07:41 PM   #16 (permalink)
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Quote:
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What kind of retard can't build an AR?!?! They're like Legos for gun nuts.
True story.

Quote:
Originally Posted by Jason R View Post
Very similar to the thread on AR15.com.
Yeah except umm, uhh...

Oh yeah, not gay.

Last edited by TheRedHorseman; 04-06-2007 at 07:42 PM.
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Old 04-06-2007, 07:49 PM   #17 (permalink)
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Quote:
Originally Posted by Hef View Post
What kind of retard can't build an AR?!?! They're like Legos for gun nuts.
But we still needed a "How to" thread so we can put our custom uppers and carbine builds in it as well

Quote:
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Oh yeah, not gay.
This forum will be a "ghey free" zone as much as possible. People of alternative sexuality are welcome, but any guns or threads of questionable sexuality will not survive.
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Old 04-06-2007, 08:49 PM   #18 (permalink)
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Quote:
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This forum will be a "ghey free" zone as much as possible.
Phew!!

I was dreading opening this up and seeing a photo of the carbine on yer ass
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Old 04-06-2007, 08:59 PM   #19 (permalink)
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Quote:
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Phew!!

I was dreading opening this up and seeing a photo of the carbine on yer ass
don't make me do that again
Bev is going to have a LOT of guns to model when she gets back
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Old 04-11-2007, 07:53 PM   #20 (permalink)
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Now we will get into uppers. shit on how to swap a barrel or install a full floating handguard. you WILL need specialized tools for it. a armorers wrench and a receiver action block would be a good start.
used a barrel vice3 and it turned to suck with my heavy barrel so I just clamped the bitch with some aluminum jaws. whooopty fucking do, so I have some aluminum marks on my barrel
well lets get to the taking apart.

Take off the muzzle brake/flash hider if so equipped. Its "normal" threaded, everything on an AR is.


Next knock out the roll pin in the gas block that holds the gas tube in


Wiggle the gas tube out of the gas block, you may need to CAREFULLY move it wit some pliers. Dont worry if you dick it up, they are cheap.


push it to the side of the gas block and pull it out of the upper receiver
Here is you tube


Next drift out the gas block pins. They are "usually" tapered and drift from left to right. Check to make sure the right side is bigger or just say fuck it and whack away.
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Old 04-11-2007, 08:00 PM   #21 (permalink)
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Next use a deadblow hammer or a brass one and tap the gas block off.


ewwwwwwwww nasty shit naa just some assembly grease


next use your armorers tool to take the barrel nut off. see the pins and where they fit


This is where a receiver action block would have come in handy. The barrel vice actualy could not hold the shit in place. It takes some oomph to loosen a new one or a corroded one.


I said fuck it and just clamped the bitch the fluting held it nice
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Old 04-11-2007, 08:11 PM   #22 (permalink)
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to install a new barrel would be the reverse of what we just did after pulling out the barrel. It comes right out.
This is the barrel nut with delta ring and spring.

BUT we are installing a full sized full floating handguard on a CAR style gas system and requires some work

This is the new barrel nut for the full floating handguard. it just slides on the barrel.


put some molly grease on the threads to prevent galling and corrosion


aaaaaand screw that bitch on


The nut needs to be torqued to like 80ftlbs and then loosened and then done 2 more times and scratch your nuts while paying homage to Mr. Stoner
Important parts: must be tight, must have the gas tube hole lined up.

Thats all I give a fuck about really I tightened the bitch to "tight" with the armorers wrench and then cranked the bitch till a hole lined up to pass the tube through.
Like so
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Old 04-11-2007, 08:19 PM   #23 (permalink)
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Next I hacked down the gas block to the bare minimum to work. This will fit under the handguard.


Reinstalled the pins and shit and everything back together


after screwing on the handguard I went and slid on my NEW "gas block". This one is only for mounting the front sight and maybe a light or some shit. Note the very small amount of "tacticoooool" rail on this weapon
I put a front sight on the block and lined it up with a rear sight then tightened the set screws.




I screwed back on my muzzle brake and was done....for now
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Old 04-11-2007, 08:25 PM   #24 (permalink)
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Good writeup, I might put it to good use shortly.
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Old 04-11-2007, 08:26 PM   #25 (permalink)
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I will take it all apart soon after I function test it. I will drill the fuck out of that front gas block and same with the top of the handguard. There is WAY too much material on both and could use to be lightened. I will duracoat it all black Maybe a vortex flash hider..or someones anyway

DPMS lower, DoubleStar upper 16" fluted heavy barrel chrome lined and 5.56. DPMS handguard, DPMS gas block, Brownells front flipup sight, "some shitty ebay special" rear sight, Aimpoint CompM, soon to be tested.


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