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Thread: Gas Port size on Noveske

  1. #11
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    Quote Originally Posted by davemcdonald View Post
    Maybe he is going to make a chart.
    Funny you say that. This is one of the two most commonly requested additions to the Chart now that the new version is out. The other is sear-block/high-shelf or not. There's not much chance I'm going to add either, so maybe someone should make a chart of this stuff for the people chasing inconsequential minutiae instead of shooting.

    I get about one email a month from people asking me if I know the gas port size on this barrel or that. In every single case they are researching buying their first AR.

  2. #12
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    Yes, I was wanting to know the port size for proper buffer weight utilization. I have already purchased the upper with Noveske barrel, but I bought it off the EE from M4C and do not / did not know all the specs. All I know is that the upper originated from MSTN.

    Yes, I trust Noveske to assemble top quality products, but I also trust my inexperience in knowing how to address troubleshooting. My list of reliable people to ask questions like this is short. I've only been shooting AR's for two years and this is my first SBR. I thought the experienced members on this forum would be good people to learn from.

    Rob_S, I don't know what you aimed to prove, but I would like to think you would be more helpful to the less experienced looking to gain knowledge. Had I asked, "which buffer to use on an 11.5" SBR?", you would have said H or H2. I would have responded, WHY? The ultimate answer lies within the gas port size.

    Kartoffel, thanks for jumping in. You nailed it and clearly saw the point of the question.

  3. #13
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    I think what Rob is getting at, is that you should get out and shoot the gun first to see if there even is a problem to diagnose........

    I am heading down the same path as well, building my SBR, but no sense in trying to "fix" anything until I know there is a problem. There's just too many variables to deal with to go off of what you read online, the other guy with your same upper could have had a different buffer, could have used different ammo, etc, etc.

    Just my $0.02
    ΜΟΛΩΝ ΛΑΒE

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  4. #14
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    Quote Originally Posted by amac View Post
    Yes, I was wanting to know the port size for proper buffer weight utilization. I have already purchased the upper with Noveske barrel, but I bought it off the EE from M4C and do not / did not know all the specs. All I know is that the upper originated from MSTN.

    Yes, I trust Noveske to assemble top quality products, but I also trust my inexperience in knowing how to address troubleshooting. My list of reliable people to ask questions like this is short. I've only been shooting AR's for two years and this is my first SBR. I thought the experienced members on this forum would be good people to learn from.

    Rob_S, I don't know what you aimed to prove, but I would like to think you would be more helpful to the less experienced looking to gain knowledge. Had I asked, "which buffer to use on an 11.5" SBR?", you would have said H or H2. I would have responded, WHY? The ultimate answer lies within the gas port size.

    Kartoffel, thanks for jumping in. You nailed it and clearly saw the point of the question.
    I don't know that I'm "trying to prove" anything, other than these kinds of discussions about inconsequential minutiae are having exactly the effect I'm talking about: distracting people from what matters.

    This obsession with minutiae, tweaking, "tuning", building, etc. all from positions of total ignorance is what I'm lobbying against. Go shoot the gun. If you do not know enough out of the gate to know how to answer your own questions and solve your own problems, you need to be buying a factory gun, or contacting the manufacturer when you buy a used gun (or half a gun) and ask them the question that you really want to ask. Honestly, if someone had replied to this thread and said "the gas port size on your barrel is 0.x inches" would you know enough to then figure out on your own what buffer to use? Then why not just call Noveske and say "hey guys, I just bought one of your uppers and I was wondering if you could tell me the optimum buffer to use".

    FWIW, this buffer/spring obsession has gotten equally ludicrous.

  5. #15
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    Noveske doesn't list or readily discuss their gas port sizes.

    You more or less have to buy one and measure it to know.

    In my experiance, Noveske likes healthy gas ports. They seem to error on the side of function, which I completley welcome.

    FWIW, this buffer/spring obsession has gotten equally ludicrous.
    The mythical quest to make an AR15 recoil like a staple gun...which will never happen. Technique trumps device.
    Last edited by bp7178; 07-07-11 at 10:25.

  6. #16
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    Quote Originally Posted by rob_s View Post
    This obsession with minutiae, tweaking, "tuning", building, etc. all from positions of total ignorance is what I'm lobbying against. Go shoot the gun. If you do not know enough out of the gate to know how to answer your own questions and solve your own problems, you need to be buying a factory gun, or contacting the manufacturer when you buy a used gun (or half a gun) and ask them the question that you really want to ask. Honestly, if someone had replied to this thread and said "the gas port size on your barrel is 0.x inches" would you know enough to then figure out on your own what buffer to use? Then why not just call Noveske and say "hey guys, I just bought one of your uppers and I was wondering if you could tell me the optimum buffer to use".

    FWIW, this buffer/spring obsession has gotten equally ludicrous.
    Well said...

  7. #17
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    Our short barrels are designed for an H2 buffer.

  8. #18
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    amac,

    Rob_s wasn't being an ass. I think his point is well made and I wish more people would read what he posted on this matter.

    Quote Originally Posted by rob_s View Post
    I don't know that I'm "trying to prove" anything, other than these kinds of discussions about inconsequential minutiae are having exactly the effect I'm talking about: distracting people from what matters.

    This obsession with minutiae, tweaking, "tuning", building, etc. all from positions of total ignorance is what I'm lobbying against. Go shoot the gun. If you do not know enough out of the gate to know how to answer your own questions and solve your own problems, you need to be buying a factory gun, or contacting the manufacturer when you buy a used gun (or half a gun) and ask them the question that you really want to ask. Honestly, if someone had replied to this thread and said "the gas port size on your barrel is 0.x inches" would you know enough to then figure out on your own what buffer to use? Then why not just call Noveske and say "hey guys, I just bought one of your uppers and I was wondering if you could tell me the optimum buffer to use".

    FWIW, this buffer/spring obsession has gotten equally ludicrous.



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  9. #19
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    Quote Originally Posted by Fire_Medic View Post
    I think what Rob is getting at, is that you should get out and shoot the gun first to see if there even is a problem to diagnose........
    Amen to that!

    Another thing I think we're overlooking is that The Chart covers carbine length gas, carbine receiver extensions, and 14.5" and 16" barrels ONLY.

    For that configuration, the "correct" gas port diameter is 0.062" if I recall correctly. My limited exposure to gas port dimensions and SME's who talk about such things leads me to believe that Colt/BCM/LMT/DD et. al. hover right around 0.062", whereas the shit tier makers sometimes have bigger ports to overcome rough actions and mild .223 ammo.

    Now, if you're shopping for an SBR upper, or a midlength, then you're already outside the scope of The Chart. I'd recommend looking for other sources of information, rather than bugging Rob for perceived shortcomings in The Chart.

    On the other hand, I think it's pretty dumb to play like gas port diameters are classified info, or a dimension that's not worth knowing. The original purpose of The Chart was more or less to track compliance to the TDP, and I bet you somewhere in that legendary document is a spec for gas port diameter.
    Oh no, not another lube thread! Read this first: Lubrication 101.

  10. #20
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    If you aren't running a suppressor, gas port size is completely irrelevant, if the barrel doesn't suck.

    If the gun feels like the cyclic (sp?) rate is too high, stronger spring, or heavier buffer, make sure the gun is reliable, stop sweating over stupid shit.
    We miss you, AC.
    We miss you, ToddG.

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