G&R Tactical
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Thread: My first AR build questions. 7.5"

  1. #21
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    Pistols use carbine buffers and springs.

  2. #22
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    Quote Originally Posted by JohnXDm View Post
    Pistols use carbine buffers and springs.
    Yea, figured I had the wrong spring.

  3. #23
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    Not sure what you mean by standard spring. Just measure and count what you have.

    Below is from Wing tactical

    A standard carbine spring is 10.5" long and has from 37 to 39 coils. The standard rifle spring is 12.75" long and has either 41 to 43 coils. Over time, with every shot, the buffer spring will weaken and should be periodically removed and measured.

  4. #24
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    Quote Originally Posted by JohnXDm View Post
    Not sure what you mean by standard spring. Just measure and count what you have.

    Below is from Wing tactical

    A standard carbine spring is 10.5" long and has from 37 to 39 coils. The standard rifle spring is 12.75" long and has either 41 to 43 coils. Over time, with every shot, the buffer spring will weaken and should be periodically removed and measured.
    Riffle spring, 43 coils.

  5. #25
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    At least springs are one of the less expensive components. Here are two more pictures of the Fortis Control Shield

    20180430_130946.jpg

    20180430_1309403sik.jpg

  6. #26
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    Always how it goes..

    Here are two more pictures of the Fortis Control Shield.


    20180430_130537.jpg

    20180430_130957.jpg
    Attached Images Attached Images
    Last edited by JohnXDm; 01-14-19 at 17:43.

  7. #27
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    My barrel came in today and I went and bought a BCM (might put on my 6920) charging handle, Aero BCG, torqued and staked my buffer tube castle nut. Now I need a new spring, handrail, BUIS, muzzle device, and a decent model price optic. It'll be on hold for a bit but while I do some more research and let my wallet settle. I'm not wanting to dump a whole lot of money into this build. Once this is done I think I'll do a Mk18 build as close to spec as possible and probably register it as an SBR, this is just a pistol only build for fun.
    Last edited by Rngr188; 01-14-19 at 19:31.

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