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Thread: 1.7 oz buffer?

  1. #21
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    Quote Originally Posted by bp7178 View Post
    If you're set on reusing the stock DPMS barrel, I would make the effort to measure the gas port and probably hit the chamber with a reamer to make sure it's to spec. Also worth it to check the headspace with the bolt you're going to run with it.

    If you know the size of the gas port, you'd be in a much better posistion to determine what buffer to run.
    The barrel has worked well for me, I've even managed some respectable groups with it, although I have no clue what chamber or twist it runs, no roll stamp. I don't have a precise way to measure the gas port, but best I can come up with would be about .076", does that sound close? If I'm sticking with the same bolt/barrel that was in the original receivers, does my headspacing stay the same? I think I read somewhere that the bolt should stay with the barrel. I've avoided any real 5.56 in it since I don't know the chamber, there's a local guy that's done some work for me in the past that would probably have that go/no go chamber gauge, I'll have to get with him.

  2. #22
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    Quote Originally Posted by ucrt View Post
    .

    DJ,
    Would you mind saying how many would you have through your DPMS with a 1.7oz buffer?

    Thanks

    .
    If I had to take a wild guess, I'd say maybe 1500 since I've had it? I got it maybe three years ago, right about when ammo ceased to exist, and have played mostly pistols and rimfire since then.

  3. #23
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    Your question wasn't how the AR15 gas system works.
    Your question was what was wrong with your buffer weight, rattle, plastic...

    Reaming the chamber isn't about accuracy, it is about reliability.
    A looser chamber aids in reliable extraction.
    You think your weapon is reliable until you put 300 rounds through it during the course of an afternoon.
    Given DPMS' track record, your weapon probably would choke.
    I personally won't trust a weapon until I've shot a case through it trouble free. (Running the gun hard.)

    Measuring the gas port will tell you absolutely nothing because you don't understand how the whole gas system operates.
    Your weapon is over gassed. The action is far more violent than it needs to be.
    A heavier buffer will help remedy the action, but not the fact that it is over gassed.

    My advice to you is two-fold.
    #1 Sell the weapon complete and buy a higher quality one.
    #2 Take the advice of those who know, and tone down the combativeness.
    Last edited by polymorpheous; 04-22-12 at 17:35.
    Quote Originally Posted by scottryan View Post
    Anybody that owns or sells pistol versions of assault rifles is a bottom feeder, irregardless of the ban status of certain ammunition.

    They are illigetimate weapons that have no real purpose other than to attract retards to the gun community.

  4. #24
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    Quote Originally Posted by polymorpheous View Post
    Your question wasn't how the AR15 gas system works.
    Your question was what was wrong with your buffer weight, rattle, plastic...

    Reaming the chamber isn't about accuracy, it is about reliability.
    A looser chamber aids in reliable extraction.
    You think your weapon is reliable until you put 300 rounds through it during the course of an afternoon.
    Given DPMS' track record, your weapon probably would choke.
    I personally won't trust a weapon until I've shot a case through it trouble free. (Running the gun hard.)

    Measuring the gas port will tell you absolutely nothing because you don't understand how the whole gas system operates.
    Your weapon is over gassed. The action is far more violent than it needs to be.

    A heavier buffer will help remedy the action, but not the fact that it is over gassed.

    My advice to you is two-fold.
    #1 Sell the weapon complete and buy a higher quality one.
    #2 Take the advice of those who know, and tone down the combativeness.
    How would you know that without knowing the size of the gas port exactly? If you knew the size, you would have a basis for comparission for the other technical information you came across.

    I have no dog in this fight, but some hard internet mother****ers kind of jumped on the OP for asking a question.

    You don't know what you don't know.

    I'm not really picking up attitude on his part, more on the other posters.
    Last edited by bp7178; 04-22-12 at 19:56.

  5. #25
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    Quick question...somewhat unrelated

    Are DPMS LPK's trash too? I don't want to make a thread just about LPK's so I thought maybe I can get an answer here...since we are already on the topic of DPMS

  6. #26
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    Quote Originally Posted by skeebinz View Post
    Quick question...somewhat unrelated

    Are DPMS LPK's trash too? I don't want to make a thread just about LPK's so I thought maybe I can get an answer here...since we are already on the topic of DPMS
    They're not trash but they are rough. Lots of complaints, even of pins walking out of the receiver. For a little more you could get G&R Tactical's LPK or a Daniel Defense. For the same price you can get a Stag kit from BCM.
    US Army 1966-69, VFW Life Member, Retired Geek

  7. #27
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    Quote Originally Posted by skeebinz View Post
    Quick question...somewhat unrelated

    Are DPMS LPK's trash too? I don't want to make a thread just about LPK's so I thought maybe I can get an answer here...since we are already on the topic of DPMS
    Other than the one that came in my lower, I don't have any experience with them, but the internet chatter is that the roll pins are a bit oversized and are a nightmare to get in. I heard this enough times that I decided against getting one from DPMS, and I'm leaning towards Stag or LMT if I can find them.

  8. #28
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    There are better choices than DPMS for a LPK. I'd rather get a Stag/CMT one. Grant puts together a good LPK and you can pick your options so you don't end up with a drawer full of stuff you'll never use.

    If your rifle is a safe queen and you'll only use it on a flat range maybe twice a year, a DPMS kit may be fine. If its something you're going to bet your life on, or plan for any kind of hard use, I'd spend a few extra dollars and get something of better quality.

    Same can be said for anything AR15 related really...

  9. #29
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    Quote Originally Posted by bp7178 View Post
    How would you know that without knowing the size of the gas port exactly? If you knew the size, you would have a basis for comparission for the other technical information you came across.

    I have no dog in this fight, but some hard internet mother****ers kind of jumped on the OP for asking a question.

    You don't know what you don't know.

    I'm not really picking up attitude on his part, more on the other posters.
    These 'hard internet mother****ers' jumped on the OP for stating he had a limited knowledge of the system (so limited, in fact, that he was unaware he had a shit part in his gun) and then being a smart ass once he received constructive advice. THAT is why we came down on him.

    If you can show me one DPMS that has a properly sized gas port (read .062"-.063" on a carbine gas barrel), I'll STFU right now.

    I'm not saying that every GP that DPMS has drilled is wrong, but I AM saying that I have not seen one that is sized per the TDP.

    Not. One.

    Maybe there is one out there that is drilled to the proper size....but you're gonna have to show us one first. It is logical to assume that the GP is too big. This is based on the compound experience of many members here.

  10. #30
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    [QUOTE=bp7178;1289373]Grant puts together a good LPK and you can pick your options so you don't end up with a drawer full of stuff you'll never use.
    QUOTE]

    Who's Grant?

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