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Thread: Rail install problem

  1. #1
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    Rail install problem

    I just got a P&S ras and was trying to install it in my rifle. For the life of me I cannot the rail under the delta ring. And there are gouged in the rail where the barrel nut appears to be preventing the rail from seating. Any ideas?1533992997253-225903616.jpg1533992997253-225903616.jpg1533993222047-833274699.jpg
    Last edited by odugrad; 08-11-18 at 09:15.

  2. #2
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    I've already insured the screw is removed and the gas tube rails sit on either side if the gas tube. And it applies to the bottom half of the rail as well as the top.
    Last edited by odugrad; 08-11-18 at 09:12.

  3. #3
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    I have seen this happen with barrel nuts that weren't timed properly. What upper are you putting this on?



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  4. #4
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    A BCM. I figured it would be good to go.

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    Anyone have any ideas on how to fix this?

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    Quote Originally Posted by odugrad View Post
    Anyone have any ideas on how to fix this?
    Nope, have you seen these:

    http://looserounds.com/2014/05/23/ho...-m4-or-m5-ras/

    http://www.quarterbore.com/library/p...c_ras_inst.pdf

    Do you have a hand guard removal tool: https://www.brownells.com/gunsmith-t...prod24202.aspx

    I'm simply asking if you are sure you are getting the Delta Ring as far back as it needs to be.

    Good luck.
    "If I had asked people what they wanted, they would have said a faster horse." - Henry Ford

    “You are responsible for your actions, but the world doesn’t turn around you, so it’s important that you find something bigger than yourself to work for, a way for you to make a difference.” - Drew Dix, MOH VN '68

  7. #7
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    Quote Originally Posted by odugrad View Post
    A BCM. I figured it would be good to go.
    Quote Originally Posted by CPM View Post
    Autistic screeching ensues.
    It couldn't be the rail.
    E pluribus unum

  8. #8
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    "Anything made by made is subject to failure". Wilius Gunnus Smithus 59 A.D. Not saying that it is the upper/barrel nut. But, I have seen some instances of it happening.

    Have you considered having someone else look at it to rule out operator headspace?

    Quote Originally Posted by odugrad View Post
    A BCM. I figured it would be good to go.



    Owner/Instructor at Semper Paratus Arms

    Facebook: https://www.facebook.com/SemperParatusArms/

    Semper Paratus Arms AR15 Armorer Course http://www.semperparatusarms.com/cou...-registration/

    M4C Misc. Training and Course Announcements- http://www.m4carbine.net/forumdisplay.php?f=141

    Master Armorer/R&D at SIONICS Weapon Systems- http://sionicsweaponsystems.com

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