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IndustryArena Forum > Hobby Projects > Gunsmithing > milling an AR15 lower..
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  1. #1
    Join Date
    Apr 2006
    Posts
    17

    milling an AR15 lower..

    i was given a AR15 raw lower by a friend.
    i am also putting the finishing touches on my HF(X2) mill conversion.

    any tips on finishing the lower?

    thanks

  2. #2
    Join Date
    Feb 2006
    Posts
    65
    The first places that come to mind to check out are (in no particular order):

    http://www.ar15.com/
    http://www.homegunsmith.com/cgi-bin/ib3/ikonboard.cgi
    http://www.cncgunsmithing.com/
    http://www.falfiles.com/forums/index.php

    I'm sure there are others but this should get you started.

    Welcome to the addiction.

  3. #3
    Join Date
    Apr 2006
    Posts
    17
    i have already looked over the cncgunsmith.com (thats what got me into CNC in the 1st place). but between school and work i dont have the time to get everything up and running as fast as i wanted.

    but thanks for the new links!

  4. #4
    Join Date
    Jun 2003
    Posts
    1365
    Heres mine I'm working on a billet one.

    http://stuff.jfettigmachines.com/ar15/milling/

    Check out homegunsmith.com, if you subscribe, theres a ton of good files in the library, guides to machining those and everything.

    PM me with your e-mail address and I'll get you the proper blueprints for machining it.

    Jon

  5. #5
    Join Date
    Apr 2005
    Posts
    1268
    Jon;
    Nice work! What kind of machine are you using????
    Bill
    billyjack
    Helicopter def. = Bunch of spare parts flying in close formation! USAF 1974 ;>)

  6. #6
    Join Date
    Jun 2006
    Posts
    478
    Quote Originally Posted by opcode1300 View Post
    i was given a AR15 raw lower by a friend.
    i am also putting the finishing touches on my HF(X2) mill conversion.

    any tips on finishing the lower?

    thanks
    I'd say the only tuff part would be the mag well,these are nomally broached. Also keep in mind, the lower is the part of an ar-15 that has the serial nos. so watch out the ATF boyz might be looking, good luck.(flame2)

  7. #7
    Join Date
    Jun 2003
    Posts
    1365
    The magwell is the hardest part in my opinion.

    Not having a serial number IS legal on a homebuild that YOU yourself build and only YOU posess. it cannot be sold or given away. its a good idea to put one on because most of cops are uneducated in home building.

    I am using a Sieg x2 mini mill retro'd.


    Jon

  8. #8
    Join Date
    Apr 2006
    Posts
    17
    any info on the format of serial numbers?

    would "SN:ID10T-XXXXXX" (x= random digit 1-9) work? lol

  9. #9
    Join Date
    Jun 2003
    Posts
    1365
    what ever you want man. I'm gonna just do 0001 on mine.


    Jon

  10. #10
    Join Date
    Jun 2006
    Posts
    478
    opcode1300,
    If you put on a serial no. wouldn't that make you a firearms manufacturer? I'd make sure you know exactly what the Fed., State and Local laws are. The ATF WILL put the SMACK DOWN on you if your caught doing anything even remotely illegal. And think of the ramifications...can you say felony? Anyhow maybe Mr. Fettig is right but check to be sure.


    A.J.L.

  11. #11
    Join Date
    Jun 2003
    Posts
    2103
    I think that the ATF prefers you to put a serial number on and if memory serves me correctly, they will assign you a # if you want to put it on the rifle.

    The best thing is to go to the AFT site and download the pertinent info.

    Mike
    No greater love can a man have than this, that he give his life for a friend.

  12. #12
    Join Date
    Apr 2005
    Posts
    403
    I don't know all the ins and outs dealing with the ATF, I'm still bogged down with the State Department as for as exporting. Here's my system for taking care of :argue: "Problems with the Neighbors".


    I'm currently using a Shopmaster 3 in 1 but if I start selling I've got to add something more substantial.

    Glad to see some AR guys out there.

    Ron

  13. #13
    Watch out people! My MacAfee virus protection balked at that safestshot site.

    -Jeff

  14. #14
    Join Date
    Sep 2005
    Posts
    25
    You can put on a SN but you do not have to. You should join http://www.homegunsmith.com/cgi-bin/ib3/ikonboard.cgi
    There is a is a form over there dedicated to legal issues. $20 a year is a lot cheaper than a 10 year vacation.

    I would take a 12 gage shotgun with flachet rounds over that any day. I just don't like to think about the mess after.
    Pxsi

  15. #15
    Join Date
    Jul 2006
    Posts
    1
    Quote Originally Posted by JFettig View Post
    Heres mine I'm working on a billet one.

    http://stuff.jfettigmachines.com/ar15/milling/

    Check out homegunsmith.com, if you subscribe, theres a ton of good files in the library, guides to machining those and everything.

    PM me with your e-mail address and I'll get you the proper blueprints for machining it.

    Jon
    Hi Jon,
    I'm also a pillar in the homegunsmith forum and if possible would like the plans for your ar 15 lower. I do have access to the library but I like the blocky look yours has. My email is [email protected]

  16. #16
    Join Date
    Aug 2007
    Posts
    91
    Anyone got a complete set of CAD files for the AR-15, or a Complete set of Dimensioned blueprints for the AR-15 (upper and Lower reciever, trigger, bolt, barrel, etc.)??? Thanks

  17. #17
    Join Date
    Apr 2007
    Posts
    1

  18. #18
    Join Date
    Jan 2009
    Posts
    1

    AR15 Lower

    I have a great model but it is in Pro Engineer. I can give you a copy of it if you can use it.

    Joe

  19. #19
    Join Date
    Jun 2003
    Posts
    2103
    Quote Originally Posted by jskadb6 View Post
    I have a great model but it is in Pro Engineer. I can give you a copy of it if you can use it.

    Joe
    Does this model include the bolt and bolt carrier?

    Mike
    No greater love can a man have than this, that he give his life for a friend.

  20. #20
    Join Date
    Feb 2007
    Posts
    592

    Exclamation

    I was a firearms Mfg for 12 years.

    95% Custom AR type rifles.

    Uppers, Lowers, rails etc.

    But I always bought Bolts and (Chrome lined) carriers from the really big MFG because they are setup to produce that part in quantity to the proper specs.

    Even if it was easy to machine an AR 5.56NATO bolt to the exacting specs, unless you have the proper certified material and experianced heat treat personnel and spare parts for destructive testing of each heat treat lot... Then I would never trust it for live fire.

    That bolt is less than 10 inches from your face during normal use, consider what could happen if it fails.

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