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Thread: Castle nut staking

  1. #11
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    I installed one on my LMT using a VLTOR tube and on my 3gun rifle (Bushy lower) with a VLTOR tube. I did have to really crank on the nut with the Tonys Custom Uppers M4 spanner wrench to get it far enough back in each case but I did get them to work. I didn't have to thin the castle nut on either rifle.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  2. #12
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    gotm4,


    I plan on using the Starret automatic punch as well. How difficult is removing the castle nut if I later to decide to switch receiver end plates?
    "However horrible the incident of war may be, the soldier who is called upon to offer his life for his country, is the noblest development of mankind." - General of the Army Douglas MacArthur, Manila, 24 August 1936

  3. #13
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    Quote Originally Posted by abnk View Post
    gotm4,

    I plan on using the Starret automatic punch as well. How difficult is removing the castle nut if I later to decide to switch receiver end plates?
    It's easy with a good M4 stock wrench.



    Mine works like a spanner wrench, on staked on ones (Colt, LMT, CMT/STAG) it requires a good hit with a rubber mallet. Works well on loc-tited on receiver extensions too. (RRA) If I'm not in a hurry I'll first apply some heat.

    https://www.m4carbine.net/showthread...t=stock+wrench


    On these RRA lowers to keep from f***ing up the commercial tube (if reusing it) I install the receiver extension in a padded vise and have some one hold the receiver (to keep it from turning) as I use the mallet on my stock wrench. I do this so that the tube wont turn within the receiver and get gouged by the tab on the bottom of the receiver end plate. With mil-spec tubes this doesn't happen. I believe when commercial tubes are manufactured the threads are shaved down. Commercial tubes threads don't have full peak and valleys and the groove is more shallow allowing them to turn within the receiver.
    Chief Armorer for Elite Shooting Sports in Manassas VA
    Chief Armorer for Corp Arms (FFL 07-08/SOT 02)

  4. #14
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  5. #15
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    this is what happens when you use a DPMS wrench to remove Noveske's stake jobs



    yeah I need a good one now.
    I was putting one of the looped ones on.

  6. #16
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    Quote Originally Posted by xm15 View Post
    this is what happens when you use a DPMS wrench to remove Noveske's stake jobs...yeah I need a good one now.
    I was putting one of the looped ones on.
    I've broken that tab off of every DPMS wrench I've had. To their credit, they sent a new one every time, but I gave up.
    2012 National Zumba Endurance Champion
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