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AR Lower made from Bolt-together-flats

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  • AR Lower made from Bolt-together-flats

    This comes from over at Weaponeer.net




    http://www.weaponeer.net/forum/uploa...t_Receiver.pdf


    It sure would be nice if we had specs/machinist drawings on the Fire Control Group.

  • #2
    Re: AR Lower made from Bolt-together-flats

    So, only one post?

    Every one just downloaded the drawings and were so focused on building it they neglected to come back and say "THANK YOU"?

    THANK YOU!

    :kneel:

    Comment


    • #3
      Re: AR Lower made from Bolt-together-flats

      Interesting build.
      Thanks!

      I think these would be very doable, even in a SHTF scenario.
      [CENTER][SIZE=1]“Corruptissima republica plurimae leges,”[/SIZE][/CENTER]
      [CENTER][SIZE=1]“The more corrupt the republic, the more numerous the laws.”[/SIZE][/CENTER]

      [CENTER][SIZE=1]Publius Cornelius Tacitus[/SIZE][/CENTER]
      [CENTER][SIZE=1][/SIZE] [/CENTER]
      [CENTER][SIZE=1]Sic Semper Tyrannis[/SIZE][/CENTER]

      Comment


      • #4
        Re: AR Lower made from Bolt-together-flats

        lasergunner,

        I ran across some drawings for the FCG for an AR15 awhile back.
        I'll see if I can find them, and post.
        [CENTER][SIZE=1]“Corruptissima republica plurimae leges,”[/SIZE][/CENTER]
        [CENTER][SIZE=1]“The more corrupt the republic, the more numerous the laws.”[/SIZE][/CENTER]

        [CENTER][SIZE=1]Publius Cornelius Tacitus[/SIZE][/CENTER]
        [CENTER][SIZE=1][/SIZE] [/CENTER]
        [CENTER][SIZE=1]Sic Semper Tyrannis[/SIZE][/CENTER]

        Comment


        • #5
          Re: AR Lower made from Bolt-together-flats

          How long before ATF bans these? It would seem that if you can build a AR lower it would not take much more to make a M16 lower.
          Almighty God! I know not what course others may take; but as for me, give me liberty or give me death!
          Patrick Henry

          The laws allow arms to be taken against an armed foe. Ovid

          Comment


          • #6
            Re: AR Lower made from Bolt-together-flats

            Originally posted by ah1g View Post
            How long before ATF bans these? It would seem that if you can build a AR lower it would not take much more to make a M16 lower.
            IIRC, it takes a slew of operating parts in the FCG, none of which can be used from the "semi" family of parts, to make that happen. Deliberate design at work.
            [CENTER][SIZE=1]“Corruptissima republica plurimae leges,”[/SIZE][/CENTER]
            [CENTER][SIZE=1]“The more corrupt the republic, the more numerous the laws.”[/SIZE][/CENTER]

            [CENTER][SIZE=1]Publius Cornelius Tacitus[/SIZE][/CENTER]
            [CENTER][SIZE=1][/SIZE] [/CENTER]
            [CENTER][SIZE=1]Sic Semper Tyrannis[/SIZE][/CENTER]

            Comment


            • #7
              Re: AR Lower made from Bolt-together-flats

              I wonder, what, exactly, on this build, would be considered the "serialized" part?
              You know, like an AR build, and leaving the FCG pocket alone, would not constitute it being a "receiver".

              It's ugly as sin, but funtionality wouldn't have to be purdy, would it?

              I could think of a few applications of something like this, right off the top of my chrome dome.
              [CENTER][SIZE=1]“Corruptissima republica plurimae leges,”[/SIZE][/CENTER]
              [CENTER][SIZE=1]“The more corrupt the republic, the more numerous the laws.”[/SIZE][/CENTER]

              [CENTER][SIZE=1]Publius Cornelius Tacitus[/SIZE][/CENTER]
              [CENTER][SIZE=1][/SIZE] [/CENTER]
              [CENTER][SIZE=1]Sic Semper Tyrannis[/SIZE][/CENTER]

              Comment


              • #8
                Re: AR Lower made from Bolt-together-flats

                KT Ordnance perfected that a few years ago and made an 80% kit out of it. I don't think they sell the separate parts though, you have to buy the entire thing around $250-$300
                Life, Liberty and the pursuit of those who threaten them.

                Comment


                • #9
                  Re: AR Lower made from Bolt-together-flats

                  This one seems much nicer.

                  It's only three pieces.

                  I don't know how to post pictures, but it's assembled and with an upper on the bottom of this page.

                  http://www.ktordnance.com/kto/showcase.php

                  Here is one in that style the parts torn down.

                  http://www.pagunblog.com/2011/12/23/...slight-detour/

                  I can't seem to find the CADD drawings of and of the 3 piece unit though, just the 15 piece one that is ugly as sin.

                  Even the 3 piece could even be better looking if they took the time to give it a more conventional look on the outer sides.

                  I'm going to take a standard AR 15 Lower CADD drawing and see if I can slice it up into 3 pieces something like that just to see if I can do it.

                  I'm thinking 3 versions.
                  1: Screw together.
                  2: Pin together like the upper pins to the lower but pinning down and having the upper lock it all together.
                  3: A seam to TIG weld.

                  Comment


                  • #10
                    Re: AR Lower made from Bolt-together-flats

                    Here are blueprints for the 30 round AR15/M16 Magazine. This is from Firearms Files. http://firearmfiles.com/files/AR15/1...-Blueprint.pdf

                    http://firearmfiles.com/andromeda.php?q=f&f=%2Ffiles



                    I have seen a lot of good drawings and even some animations of the FCG but nowhere have I seen these components dimensioned.

                    Comment


                    • #11
                      Re: AR Lower made from Bolt-together-flats

                      So, anyone have one of those 3 or 4 piece lowers from KT?

                      I have seen one where the front is a separate piece (4 Pieces) and one where the front piece was split in half and each side was a part of the side plates (3 Pieces).

                      Comment


                      • #12
                        Re: AR Lower made from Bolt-together-flats

                        Disassembled pic of KT:
                        http://www.ktordnance.com/kto/detail/kt15bx.html



                        <-- Right Side Disassembled Left Side -->
                        In a corrupt society, the truth can be found in what is forbidden to say.

                        Comment


                        • #13
                          Re: AR Lower made from Bolt-together-flats


                          http://www.thefirearmsforum.com/showthread.php?t=109892

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                          • #14
                            Re: AR Lower made from Bolt-together-flats

                            There's some great stuff on Weapons Guild too but you have to be a member to see it. Guys have made bolt together and weld together lowers there, and at least one recent thread shows a very nice looking bolt together unit.

                            I can cast rear sections to help create easy buffer towers instead of whittling down a big piece of stock. Working on perfecting that now. (Started trying to cast complete lowers but plenty of guys are doing that and since it takes a long time to machine a 0% lower, I figured I'd be much farther ahead to cast receivers like the KT Ordnance ones). No, casting isn't as strong as forging but neither is billet - nobody mentions that. They make lowers from polymer now and cast is also plenty strong for what we want.
                            Last edited by Sturmgewehr44; March 26, 2013, 11:33.

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