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Re barreling M4

Discussion in 'Rifle Discussion' started by Liberty97045, Dec 15, 2012.

  1. Liberty97045

    Liberty97045 Oregon City Well-Known Member

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    While I am waiting for the gubmint to approve my ThunderBeast 30P-1, naturally I am looking at things to spend money on so my other guns can accept it.

    I have an older Olympic Arms AR-M4 with the short barrel and a welded on extension that makes it legal and makes it look like a 20 gauge. I'm not sure what this configuration is called.

    This gun is an old pre-ban shooter with a slide fire stock and is just for killing zombies. :gun11: I am thinking about changing the barrel to something like this so that I can put my suppressor on it.

    DPMS AP4 Barrel AR-15 5.56x45mm NATO M4 Contour 1 9 Twist 16 Chrome

    I am also interested in the gas piston conversion kits. Opinions on the conversion on the zombie killer vs buying a gun with it already on it? Some kits use the existing front sight post
    Osprey Defense OPS-416 Gas Piston Retrofit Conversion Kit AR-15

    And some replace it
    CMMG Gas Piston Retrofit Conversion Kit Gas Block 1-Piece Bolt Carrier

    Thoughts?
     
  2. Liberty97045

    Liberty97045 Oregon City Well-Known Member

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    Oh yea, is there a difference between a .556 chambering and a 223? Should I care?
     
  3. BANE

    BANE Battle Ground WA. Well-Known Member

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    You would want a 5.56 chamber. Are you going to get your can welded onto a short barrel or a 16" so you can take ot on and off? The benefit of running a piston system is it keeps your rifle cleaner..
     
  4. BANE

    BANE Battle Ground WA. Well-Known Member

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    You could get your barrel extension machined off. So you could use your existing barrel.
     
  5. Liberty97045

    Liberty97045 Oregon City Well-Known Member

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    The existing barrel would not be legal without the welded on extension and no, I would not weld a screw on can to a barrel. :rolleyes:

    What I am after with the new barrel are the threads necessary to attach a suppressor.
     
  6. Liberty97045

    Liberty97045 Oregon City Well-Known Member

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    Thanks for the reply Captain Obvious
     
  7. MarkAd

    MarkAd Port Orchard Well-Known Member

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    "What I am after with the new barrel are the threads necessary to attach a suppressor"
    NO
    Now get oyver to silincertalk.com and ask a bunch of ??? about the options.
     
  8. BANE

    BANE Battle Ground WA. Well-Known Member

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    I was going to offer a barrel install. I could get a barrel if you needed one also. But whatever ...
    i build AR's all the time and make cans at a local ffl. (Legal ones)I was just wanting to know more about your thoughts you could of wanted to build a sbr (legal) with the paper work. Sorry for the inconvenience. And to waste your time..
     
  9. mjbskwim

    mjbskwim Salmon,Idaho Well-Known Member

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    Dude,you tried,just go back to your regular programing. He'll figure it out
     
  10. Tim K

    Tim K Colorado Member

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    White Oak Armament 18". Have a smith cut and re thread for your 30P, or run an adaptor on the stock threads of a 16". They are 1:7 twist and absolute hammers with 77g SMK'S. I've on my 5th, and they shoot into 5/16" at 100y.
     
  11. Liberty97045

    Liberty97045 Oregon City Well-Known Member

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    Thank you