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Thread: More powerful buffer spring?

  1. #11
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    lol, all good points grumpy.

    The gun IS assembled correctly. I have a feeling it was a combination of sorts.

    Noveske is known for a tight chamber, so add 200rds worth of gunk and a weak recoil spring and theres my problem. I bet the fact that it ran once I seated the round is because it was actually over gassed and the buffer was rebounding and slamming back onto the bolt which aided in stripping the next round off and chambering it fully.

    I had a hunch what the problem was, I just wanted some ideas on a more powerful buffer spring that others had used. I posted this and 5min later did a google search and found springco...lol.

    So hopefully that fixes it.
    Industry T&E

  2. #12
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    Quote Originally Posted by Fireman1291 View Post
    ....

    Noveske is known for a tight chamber, ....
    =========================

    I've never heard Noveske's had tight chambers before.

    Has anyone else?

    .
    Last edited by ucrt; 02-10-11 at 17:14.

  3. #13
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    My 10.5" upper had some issues with the first round seating, but after 400 rounds down it now, no issues.

    Ill know for sure here this month running 600 rounds in a one day carbine class.

  4. #14
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    What brand is the current spring and I would measure it.


    What brand of mags and how many rounds are you loading? Have you tried starting out with say 2 less than full?


    My only other guess is there is some point of friction when the BCG comes forward like on the top of the hammer.

  5. #15
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    I should also add in my experience the red spring increased recoil quite a bit. I tried it in a LaRue stealth 16" and I took it out after a couple mags is was so bad.


    Ive also recently tried 2 of the blue springs, and had a much better experience although I noticed an slight increase in recoil from normal BCM/Colt springs.



    Of course some people like them so Im not sure why I haven't had the best luck with them. I normally use H buffers so that may play into it somewhat, too. I never had an issue with cycling or loading a fresh round off a new mag with regular BCM/Colt springs and H buffers.

  6. #16
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    Quote Originally Posted by Fireman1291 View Post
    Noveske is known for a tight chamber

    No they are not.
    "Not every thing on Earth requires an aftermarket upgrade." demigod/markm

  7. #17
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    Someone else already mentioned clean and lube. Though why you would need to do so after 200 rounds is beyond me.

    I was referring to the fact that when you add a suppressor you create excess back pressure (unless I am wrong) and that should speed up the BCG.

    I have cleaned my SBR a grand total of maybe 2 times and everything else was nothing more than a wipe down. I also run mine wet which is also "blasphemy" to some military people who have been wrongly indoctrinated.

    As I stated earlier. My SBR was 100% reliable with the standard M4 spring.

    Quote Originally Posted by Grumpy MSG View Post
    Educate me please on this one. Why would the supressor have an effect on the bolt carrier returning forward other than the increased pressure causing more carbon to end up in the bolt carrier and upper receiver? It seems to me (And this will be blasphemy to some on this site) the first step to sorting this out would be to clean the rifle and lubricate it properly.

    The rifle is getting enough gas, it is cycling and grabbing the next round. Something is causing it not to chamber it completely. The question is: Is it tight tolerances, gunk (exacerbated by the supressor) or something misassembled( I have seen a Soldier assemble a rifle with the firing pin retaining pin backwards and smack the bolt carrier to bend it enough to get it together. It rubbed the upper receiver until it was corrected)?



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  8. #18
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    Hey guys I've got a question relating to this for you. I had this same problem with some rounds that were poorly sized in my RRA. Since I switched to different ammo I've had no problems with feeding.
    I plan on putting a Magpul UBR stock on it and it says in the manual to only use a carbine buffer & spring I believe, does anyone know why they say this? I was thinking about going to a heavier buffer to slow my bolt down a bit, should I not do this with the UBR stock?

    Another problem I've been having is that my feed ramps gouge the crap out of my bullet jackets. If i chamber the same round twice I just throw it aside to be pulled because the jacket is so badly gouged. Has anyone heard of this before, is their an easy fix, like fileing an edge or do I need to buy & install a new feed ramp?

  9. #19
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    When they say "carbine" buffer they are referring to the size- in other words don't use a rifle length buffer.

    Take a picture of the inside of the upper. I suspect that you have a mismatched barrel extension and upper.

    Quote Originally Posted by MrLebowski View Post
    Hey guys I've got a question relating to this for you. I had this same problem with some rounds that were poorly sized in my RRA. Since I switched to different ammo I've had no problems with feeding.
    I plan on putting a Magpul UBR stock on it and it says in the manual to only use a carbine buffer & spring I believe, does anyone know why they say this? I was thinking about going to a heavier buffer to slow my bolt down a bit, should I not do this with the UBR stock?

    Another problem I've been having is that my feed ramps gouge the crap out of my bullet jackets. If i chamber the same round twice I just throw it aside to be pulled because the jacket is so badly gouged. Has anyone heard of this before, is their an easy fix, like fileing an edge or do I need to buy & install a new feed ramp?



    Owner/Instructor at Semper Paratus Arms

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

  10. #20
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    They most likely say that just to avoid any liability when their customers do dumb things.


    The UBR uses standard carbine buffers and springs so it should be a direct swap. If you want to use an H buffer it should run fine and take a bit of the edge off the cycling.


    Its common/normal with AR's to have some scrapes on rounds that have been chambered. All of mine do it but its more just light scratches. If the rounds are really being gouged with deep scratches Id take a look at the feed ramps as its a possibility you have a bad edge there. See if the marks look the same if you feed the round from either the left or right side. Usually with a full magazine it will feed from the right. The next round down should feed from the left.

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