Ar-15 builds

Discussion in 'Large-Bore/Small-Bore Rifle/Shotgun' started by justsomeguy, Apr 14, 2012.

  1. justsomeguy

    justsomeguy New Member

    Joined:
    Jan 2, 2012
    Messages:
    66
    Location:
    Detroit Mich
    Just trying to figure out if you guys have a good source for a AR book that explains how to build one. I havent messed with them to much and would like somthing with good detailed explanation and pics. I am a very mechanical person and with just a bit good guidence i know i can knock it out. Thanks in advance for your help.
  2. JLA

    JLA Well-Known Member

    Joined:
    Feb 26, 2007
    Messages:
    18,271
    Location:
    Heart Of Texas
    ARs are modular. 99% of the replacement barrels come with the hood already installed and headspaced and the hole drilled for the gas system. The barrel is fixed to the upper via the barrel nut (delta ring on milspec guns or base of the free float tube) torque to 80 ft lbs or so, then the bolt and carrier assembly just slide into the upper. The lower is also fairly simple. Completion instructions for a lower will be inside the lower reciever rebuilt/completion kit. Then pin the upper to the lower and take a mag full of ammo and go shoot. It takes like 20 minutes to completely build an AR from parts in a box.
  3. jlloyd73

    jlloyd73 New Member

    Joined:
    Nov 28, 2010
    Messages:
    1,964
    I wouldn't even worry with getting a book. You can find everything you need via the web for free.............even good videos that walk you step by step. Midway used to have some very good ones (they may still have them on the site).
  4. JLA

    JLA Well-Known Member

    Joined:
    Feb 26, 2007
    Messages:
    18,271
    Location:
    Heart Of Texas
    youtube
  5. gdmoody

    gdmoody Moderator Supporting Member

    Joined:
    Sep 7, 2007
    Messages:
    11,066
    Location:
    Northeast Georgia
    I am just starting a build myself. I have put together AR's before but they have always been buy an upper and buy a lower and slap them together. This one is from scratch, all I have is small plastic bags of parts and I have ordered more parts. Had to buy tools, too. Luckily, I have an Army Technical Manual that gives detailed instructions. I am looking forward to actually building an AR-15!
  6. JLA

    JLA Well-Known Member

    Joined:
    Feb 26, 2007
    Messages:
    18,271
    Location:
    Heart Of Texas
    All you need is a vice with padded jaws,a set of punches, a dead blow hammer, a 3/4" wrench and a USMC armorers tool.
  7. gdmoody

    gdmoody Moderator Supporting Member

    Joined:
    Sep 7, 2007
    Messages:
    11,066
    Location:
    Northeast Georgia
    I had to buy the armorers tool and some punches.

    If I am reading the manual right, the barrel has to be torqued to something like 30 foot pounds and some other parts have to be torqued down to inch-pounds.
  8. justsomeguy

    justsomeguy New Member

    Joined:
    Jan 2, 2012
    Messages:
    66
    Location:
    Detroit Mich
    This is kinda what i was intending to do the deeper i can into it the better i understand them so i would really like to build one from scratch if possible.
  9. Smoke

    Smoke Member

    Joined:
    Oct 27, 2009
    Messages:
    121
    Location:
    S.W. Indiana
    OK how about something better than a good detailed explanation and pics.
    How about a step by step video, check out this link.
    http://www.lifelibertyetc.com/Content/Video/LLE_AR15StrippedLower.wmv

    http://www.ar15.com/forums/t_3_4/22...__GAS_BLOCK___Step_by_step_instructions_.html
    Good Luck with your build!
  10. polishshooter

    polishshooter Active Member

    Joined:
    Mar 25, 2001
    Messages:
    8,081
    Location:
    Indiana
    So if I have a free float tube, and a low profile DPMS gas block, all I really need is a stripped upper, a barrel and a gas tube to build my Varmint upper for my Rock River?

    Do I have to have a RR upper so my bolt and carrier work?

    I'm thinking about it myself....
  11. JLA

    JLA Well-Known Member

    Joined:
    Feb 26, 2007
    Messages:
    18,271
    Location:
    Heart Of Texas
    30-35 ft./lbs. on the barrel nut George. You are right. Guess I was thinkin lug nuts when i put down 80 earlier.

    I always just torque em down as tight as I can get a gas tube hole to line up..
  12. justsomeguy

    justsomeguy New Member

    Joined:
    Jan 2, 2012
    Messages:
    66
    Location:
    Detroit Mich
    Is anyone familiar with the Detroit Gun Works lower receiver? I dont beleive i have crossed paths with them.
  13. jlloyd73

    jlloyd73 New Member

    Joined:
    Nov 28, 2010
    Messages:
    1,964
  14. gdmoody

    gdmoody Moderator Supporting Member

    Joined:
    Sep 7, 2007
    Messages:
    11,066
    Location:
    Northeast Georgia
    Thank for the links Smoke. It was very simple and I now have my lower together, other than the stock which I haven't received yet. The upper receiver assembly looks to be much more difficult with the gas tube and so forth that has to be done. Here are a couple of pictures of what I have so far.

    I am going to build a 20 inch rifle with flat top receiver. I am going to get both the A2 round hand guards and the A1 triangle hand guards and am going with the old A1 three prong flash hider. Most of the parts haven't gotten to me yet!!

    Attached Files:

  15. JLA

    JLA Well-Known Member

    Joined:
    Feb 26, 2007
    Messages:
    18,271
    Location:
    Heart Of Texas
    The uppers are easier than the lowers george.
Similar Threads
Forum Title Date
Large-Bore/Small-Bore Rifle/Shotgun anyone got a good printable breakdown on an ar-15 Mar 25, 2014
Large-Bore/Small-Bore Rifle/Shotgun Optic Question for Ar-15 Feb 14, 2014
Large-Bore/Small-Bore Rifle/Shotgun ar-15, ak-47, mn-91/30 Jan 29, 2014
Large-Bore/Small-Bore Rifle/Shotgun Joining the AR-15 Brotherhood Sep 15, 2013
Large-Bore/Small-Bore Rifle/Shotgun AR-15 Charge Handle Mar 24, 2013

Share This Page