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Thread: Lower parts kits?

  1. #11
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    Quote Originally Posted by Bill Bryant View Post
    So I'm screwed for already getting the Stag lower, since no one supplies a good LPK separately? I think maybe I'm learning too much too fast here (catching his breath).
    I have used 8 RRA LPK's in my builds. They work and fit fine. This has been over the course of the last 5 years. So they have been consistent in that 5 years. Or you can pay the price of a complete lower for a LPK with no empircal data to support the contention that it is a superior kit.

    Why has it become impossible to give practical advice on this site?
    Last edited by rmecapn; 07-22-09 at 17:20.
    Just one of the Shepherd's sheepdogs. Joshua 24:15

  2. #12
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    Quote Originally Posted by C4IGrant View Post
    Oh, I don't think you are screwed. Buy a LPK in your price range and give it a go.

    Lesson learned though would have been to ask about LPK PRIOR to buying a lower and then you could have gotten one of ours or LMT's.


    C4
    It feels so lonely being the only person on this forum who ever made a mistake putting together an AR!

  3. #13
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    Quote Originally Posted by rmecapn View Post
    Why has it become impossible to give practical advice on this site?
    This whole thread is full of practical advice...?
    "My craving is, and always has been, to be involved in actions conducted to ensure America remains strong, safe, and free of those who have its destruction as their goal."
    - Billy Waugh

    "When you enter a room full of armed men, shoot the first person who moves, hostile or otherwise. He has started to think and is therefore dangerous."
    - Robert "Paddy" Mayne

  4. #14
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    Quote Originally Posted by rmecapn View Post
    I have used 8 RRA LPK's in my builds. They work and fit fine. This has been over the course of the last 5 years. So they have been consistent in that 5 years. Or you can pay the price of a complete lower for a LPK with no empircal data to support the contention that it is a superior kit.

    Why has it become impossible to give practical advice on this site?
    We just saw a BM & DPMS hammer pin snap in half.

    We have had issues with CMT and DPMS LPK's. So we stated that.

    You stated that you like RRA LPK's.

    So the OP has received "practical" advice.

    C4

  5. #15
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    What about Double Star kits? Anybody have any experience with them?

  6. #16
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    Quote Originally Posted by Vendetta View Post
    This whole thread is full of practical advice...?
    Practical advice?!?! The responses made him think if he didn't purchase a Colt, LMT, or G&R LPK then his lower would be caca! I've been around this site since when it actually belonged to G&R Tactical and the one thing I've never seen is emprical data to support that a CMT or RRA LPK has a higher failure rate of parts than does Colt or LMT. If it exists, it would be great to see it. Maybe Pat Rogers has a log of such things. While the manufacturing criteria for the Colt, LMT, and G&R kits may be stricter, that doesn't constitute real world examples of failure rates in actual use. That is practical information that an individual needs when making an informed decision.
    Last edited by rmecapn; 07-22-09 at 18:09.
    Just one of the Shepherd's sheepdogs. Joshua 24:15

  7. #17
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    Quote Originally Posted by C4IGrant View Post
    We just saw a BM & DPMS hammer pin snap in half.

    We have had issues with CMT and DPMS LPK's. So we stated that.

    You stated that you like RRA LPK's.

    So the OP has received "practical" advice.

    C4
    Your info is practical, because it contains real world experience, Grant. Many responses included nothing but "buy brand X". In fact, you and I are the only two who seem to have qualified our statements with hands on experience. It's that experience which counts the most when making an informed decision.

    ETA: It's that experience factor that makes me place such a high importance on data sources such as Pat Rogers logs. With information like that and the chart's explanation of features I can get the best bang (pun intended) for my buck. Sometimes manufacturing standards are critical and sometimes they may be irrelevant over the life of the weapon.
    Last edited by rmecapn; 07-22-09 at 18:11.
    Just one of the Shepherd's sheepdogs. Joshua 24:15

  8. #18
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    Quote Originally Posted by rmecapn View Post
    Practical advice?!?! The responses made him think if he didn't purchase a Colt, LMT, or G&R LPK then his lower would be caca! I've been around this site since when it actually belonged to G&R Tactical and the one thing I've never seen is emprical data to support that a CMT or RRA LPK has a higher failure rate of parts than does Colt or LMT. If it exists, it would be great to see it. Maybe Pat Rogers has a log of such things. While the manufacturing criteria for the Colt, LMT, and G&R kits may be stricter, that does constitute real world examples of failure rates in actual use. That is practical information that an individual needs when making an informed decision.
    I didn't come on here to start a fuss, but it sure can be informative if that's what y'all want to do. I'm totally new to all of this, so I'll be learning more than anyone else, fuss or no fuss.

  9. #19
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    Quote Originally Posted by rmecapn View Post
    Practical advice?!?! The responses made him think if he didn't purchase a Colt, LMT, or G&R LPK then his lower would be caca! I've been around this site since when it actually belonged to G&R Tactical and the one thing I've never seen is emprical data to support that a CMT or RRA LPK has a higher failure rate of parts than does Colt or LMT. If it exists, it would be great to see it. Maybe Pat Rogers has a log of such things.
    We see broken parts, but that really is not my main issue w/ some of these LPK's.

    My issue is fit. Some of the pieces just are not fully machined, finished, incorrect dims. or have horrible feel.
    Feel is defined as:

    1. Heavy trigger pull
    2. Spongy trigger pull
    3. Rough selector rotation
    4. Selector having stopping points in its rotation
    5. Bolt catch sticking and or being hard to release

    These are just some of the things I find.

    Remember that most people only install/handle 1-3 LPK's in their lifetime. We deal with them almost on a dailey basis.

    So are Colt, LMT and our LPK's superior to DPMS, RRA, CMT, etc? Yes, they are for many different reasons.


    C4

  10. #20
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    I've used three RRA kits in the last month. One was good and two were junk. One was even missing parts. FWIW

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